WWF’s map highlights the increasing threats faced by the species, including habitat loss, illegal trade and climate change.. 3 animals threatened by the disappearance of the rainforest
Trang 2Managing publisher: Christine Auberger Editorial Manager: Elena Iribarren Editor in Chief: Simona Sideri Art Director: Pat Carter Text and research: Liz Shepherd
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What are the threats?
We live on a beautiful planet
But all over the world, animals are in danger
If they disappear, the diversity of life on our planet will
be seriously damaged DiscoveryBox and WWF tell you
what’s going on and introduce you to people
who are taking action to save our wildlife.
Fantastic WWF
prizes to be won!
page 4
Trang 3To subscribe call
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page 56
Action around the world
page 58
+
Quiz and useful internet sites
Trang 4WWF is one of the world’s largest and most respected independent conservation organisations, with almost 5 million supporters and a global network active in over 100 countries WWF’s mission is
to stop the degradation of the earth’s natural environment and to build a future in which humans live in harmony with nature, by conserving the world’s biological diversity, ensuring that the use of renewable natural resources is sustainable, and promoting the reduction of pollution and wasteful consumption.
Today, one of the most endangered species
is the wild tiger In the past 100 years, wild tiger numbers have plummeted by around 95%, to as few as 3,200 WWF’s map highlights the increasing threats faced by the species, including habitat loss, illegal trade and climate change To view or download the map, please visit: www.
worldwildlife.org/tigertroublespots
You can help protect the future of the world’s largest big cat by adopting one.
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Visit wwf.org.uk to learn more about WWF and see how you can help to protect our beautiful planet.
10 fantastic
WWF prizes
to be won!
1st prize: a WWF tiger adoption pack
(includes a cuddly toy tiger + updates about
your tiger 3 times a year + other surprises);
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WWF plush toy
in partnership with
What to do:
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Trang 5Since life began on Earth, species
have appeared and disappeared
That’s normal But today more than
1,300 animal species and 9,000
plant species are threatened with rapid extinction What’s going on?
Trang 6In Borneo, an island in Asia, bulldozers flatten
huge areas of rainforest The precious wood is
sold in Japan and Europe Forests are replaced by
plantations of crops, such as soya and palm oil
These fast-growing plants soon use up all
the richness in the ground.
Trang 7Forest riches
Humans don’t destroy forests for fun!
The forests contain all kinds of riches:
animals, plants, as well as raw materials
in the ground We use the wood to
make furniture and we burn it to
keep warm and to cook We also cut
down trees so we can extract precious
materials from the soil, such as gold,
silver or copper People need forest land
When forests are cleared, there’s nothing to stop the rain and wind thinning the soil Soon no plants can grow there.
Solutions to deforestation
• Forest management schemes are being set up Logging (cutting
down trees) is allowed, but under strict rules so that the forest isn’t
destroyed The Forest Stewardship Council (FSC) logo helps you
identify wood products that come from well-managed forests
• Areas of forest that are fragile can be protected New reserves and national parks are being set up in many countries
• People can be educated about this issue Local people can be helped to make the best use of their forests Multi-national companies can be encouraged to stop bad practices Consumers can be taught to only buy wood products from well-managed forests.
That’s the rate at which our rainforests
are being destroyed.
3 animals threatened by
the disappearance of
the rainforest:
•Jaguars, big cats of the Amazon rainforest
•Orang-utans, great apes of Borneo
•Aye-ayes, lemurs of Madagascar
Trang 8Hunting and fishing When wild animals are captured or killed,
their species can become endangered
For this reason, trade in wild animals is
illegal However, poachers still capture
or kill some animals as they can make
a lot of money from trafficking.
More and more hunting
Humans have always hunted and
fished to eat But today, there are more
and more humans and our hunting
techniques are very efficient Greater
numbers of animals are now captured
– and not just for their meat Hunters
kill bears for the thrill Monkeys, birds
and all kinds of reptiles are sold as pets
Tigers are killed for their fur
Fewer and fewer fish
Fishing has become a huge industry
Radar is used to detect shoals of fish and nets can go very deep down
Today three-quarters of fish species, including cod and anchovies, are over- fished They’re caught before they have reproduced At this rate, in thirty years’
time, there will be no wild fish left in the oceans.
This is the estimated annual value of
the illegal trade in wild animals.
Trang 9Rhinoceros horns are made into a powder and sold as medicine in Asia Since 1977, trade in African rhino horn has been illegal
But there’s a big demand so poachers still kill them and steal their horns.
Jane Goodall’s work
Jane Goodall is an American primatologist (someone who studies primates: monkeys and apes) She has devoted
her whole life to studying chimpanzees in Africa
She observed that they eat meat and know
how to use tools Thirty years ago she created
a foundation to save chimps Since then,
several sanctuaries have been set up in
Africa to look after young, orphaned
chimps They’re nursed back to
health and taught to live in the wild.
3 animals threatened
by poaching:
•Tigers for their fur
•Elephants for their tusks
•Sharks for their fins
Trang 10Red-eared terrapins have been sold in pet
shops for a long time They’re usually small
when people buy them But when they
grow larger they can become a nuisance
So their owners sometimes leave them in
ponds where they become a threat to local
European pond terrapins.
Invasive animals Some animals travel from one continent to another as
secret passengers on boats or planes Others are released
by humans far from the place where they usually live
If they survive, they can threaten local species.
3 invasive animals:
•Red-eared terrapins in Europe
•Siberian chipmunks in Europe
•African sacred ibis in Europe
Trang 11Released into the wild
Humans have always taken animals
and plants with them when they travel
But in the last fifty years there have
been more and more journeys between
continents so many more species
have moved around Also, some exotic
animals raised in captivity or kept as
pets have escaped from their cages
or have been released into the wild in
countries where they don’t usually live.
Good at adapting
When animals are released into a new environment, they survive only if the climate and food suit them If they do survive, they may reproduce Often their numbers will increase rapidly because they have no natural predators
Environments are usually balanced, so the number of animals is controlled
If a new species is introduced it can upset this balance.
Protecting native species
Not all species that are introduced to an environment are invasive
Some new species can fit into an environment without affecting or
competing with local species
To protect native species from invaders, various organizations in different countries are taking action In the United States, for example, there’s
a campaign encouraging people not to carry fire wood from one place to another Since forest insects survive inside wood where you can’t see them, they can be transported long distances by accident
species can adapt to a new environment
On average, one species among those 10 will reproduce and become invasive.
Trang 12Polar bears hunt and eat seals on sea
ice The ice is melting earlier every year
because of global warming, so they don’t
have enough time to hunt and build up
the reserves of fat they need to survive
the cold.
Climate change
Global warming means that animals will have to deal with higher temperatures and longer periods of drought all over the world It will become more difficult for them
to find food Many species won’t survive.
3 threats linked to global warming:
•Submersion of Pacific islands
•Melting ice at polar ice caps
•Desertification in dry areas
Trang 13This is the increase in the Earth’s average temperature in the last
100 years It could increase by a further
2 to °C between now and 2100.
Greenhouse effect
Since humans have been using coal,
oil and gas as energy sources, factories
and vehicles have been releasing large
amounts of carbon dioxide into the
atmosphere This gas forms a layer in
the skies above us that stops the Earth’s
heat escaping into space So gradually,
the Earth’s temperature is increasing,
Also, seasons are becoming less reliable and more extreme That’s why we have seen such bad floods and storms as well
as droughts in recent years
Fighting global warming
The Kyoto Protocol is an international agreement on fighting climate change
It became law on 16 February 2005 187 states have now signed and ratified the Protocol, excluding the United States, which is one of the biggest polluters and producers of greenhouse gases
The Protocol commits countries to reducing greenhouse gases and sets
targets for the maximum amount of CO2 that rich countries (which create most pollution) are allowed to produce Most scientists agree that the Kyoto Protocol isn’t the complete answer But it’s a good start.
Find out more at: www.foe.co.uk/campaigns/climate
Trang 14A male giraffe can
be
up to 6m tall.
1 Find 7 differences between these two pictures of the savannah Then work out what the photographer is saying…
2 This reporter has forgotten
the names of the monkeys
he photographed Help him
to remember using
the letters on the films.
Games
Trang 16Where do cheetahs live?
In the past cheetahs lived in Africa and in Asia,
as far east as India Today there are still a large number in wildlife reserves in eastern and southern Africa But they have almost disappeared in the north and west In Asia, there are just a few left in Iran.
top speed when hunting.
Trang 17Female cheetahs raise their cubs alone
they have 3 to 8 cubs
at one time.
Are cheetahs aggressive?
Not at all They’re shy
They’re scared of people and run away from other predators, such as leopards and lions As they’re not aggressive, they’re the only wild felines (cats) that can be tamed But they have never been domesticated because they don’t reproduce easily in captivity
Are cheetahs protected?
Hunting them is forbidden in all countries in Africa But their beautiful spotted coats are illegally traded They’re used to make prayer mats, for example Cheetahs are also often poisoned by bait
put down by farmers to protect their herds.
Long tail
Their tail measures 65 to 85cm Cheetahs hold their tail up when they run to help them turn.
Supple back
Cheetahs curl and uncurl their spine as they run to extend their legs This helps them go faster.
Long legs
Cheetahs’ legs are about 70cm long They’re proportionately longer than other felines’ legs.
no herds of cattle.
Trang 18A F R I c A
Ethiopian wolves are very rare they’re the size of big dogs and they only live in Ethiopia in East Africa.
Harsh weather conditions
Ethiopian wolves live on the high plateaux (flat areas of land high up
in the mountains) of Ethiopia at
an altitude of more than 3,000m
Here, they face strong winds and night-time temperatures of -15°C Around 300 of the remaining 500 wolves
in Ethiopia live in Bale National Park and 50 in Simen National Park
The others are spread out in about ten groups and never meet.
Health threats
Ethiopian wolves sometimes come across sheep dogs on high pasture lands The dogs aren’t vaccinated They can transmit the rabies virus
or canine distemper to the wolves Epidemics then break out among the wolf population.
Trang 19Pointed muzzle
Ethiopian wolves have long jaws Their teeth are smaller and more spaced out than those of other members of the dog family.
threat to food
The Ethiopian wolf’s favourite prey is a large rodent called a mole rat that lives only in Ethiopia During periods of drought, herds
of cows are brought up onto the high plains
As they graze, the cows destroy the mole rats’ tunnels
This means that Ethiopian wolves can’t find their favourite prey in these areas any more.
threat to reproduction
When young, female Ethiopian wolves leave their pack, they often come across sheep dogs They mate with them and give birth to cubs that are half-wolf, half-dog Scientists are worried that soon there will be no true Ethiopian wolves left.
Red coat
Their fur is short but thick with white patches on the cheeks and inside legs.
Long legs
These wolves are the size of
a big dog Their long legs make them look more like
a coyote than a dog.
Trang 20Read on to find out why.
Dangerous friendship
Scientists and nature enthusiasts are fascinated by gorillas Tourists pay money to go and see them The money from tourism encourages African countries to protect gorillas But sometimes, tourists can give the big apes viruses, such as the flu!
Gorillas are the
biggest and most
powerful of the apes.
Trang 21Violent human beings
Poachers still hunt gorillas although it’s illegal They sell the meat – called
‘bush meat’ – in African markets
Fighting for minerals
In the Democratic Republic of Congo there’s
a rare mineral called coltan It’s used to make mobile phones, computers and games consoles People fight over this mineral More than 3 million people have been killed since
1998 in the fighting Thousands of gorillas have also been killed in military fire or by mines
leaning on their fingers
Only gorillas and
Large pelvis
It helps gorillas to stand up, although they move around mostly on all fours.
Trang 22tusks as valuable as gold
there were around 4 million elephants in Africa In 1960, there were still 2 million Then, hundreds
of thousands were slaughtered because their ivory tusks had become very valuable Ivory was used to make jewellery and ornaments.
Disappearing forests
Some elephants live deep in the rainforests of Africa They like to live in hiding and they need a lot
of space But in the last fifty years, half of Africa’s rainforest has been destroyed so that plantations and crops can be grown Elephants are victims of this destruction.
In an attempt to save elephants, international trade in ivory and other elephant products was made illegal
20 years ago But elephants are still under threat Even
if most African countries are against the ivory trade, some continue to sell ivory Around 38,000 elephants are still killed every year That’s 104 every day!
Trang 23What are lemurs?
Lemurs are primates, like humans
and monkeys The smallest are the
size of a mouse and the biggest are
the size of a fox Their thick, woolly
fur makes them look bigger
Their feet are like hands
with four fingers and
a thumb opposite them
Lemurs use their hands to
climb from tree to tree They rarely
go down to the ground.
Why do they only live in
Madagascar?
Lemurs are descended from animals
that arrived in Madagascar –
an island off the coast of Africa –
35 million years ago They probably came from Africa and crossed the sea, clinging to floating branches
In Madagascar they are isolated and have no predators There are no wild cats on the island Also, lemurs have
no competition as there are
no monkeys.
Why are they endangered?
Lemurs need trees for food and shelter When forests are destroyed, they can’t survive People
in Madagascar need
to grow crops They regularly burn down the forest to clear the land for farming Today, most lemurs live in reserves where they have some protection.
Lemurs
LOOk Out!
There are around 30
lemur species
in Madagascar but there’s a risk that all
of them will disappear.
-A F R I c -A
they have nails, not claws.
Madagascar
Trang 24eurasian lynx used to live
in mountain forests across europe and asia But today, there are few in western europe there are still some
in central asia Most are
in northern europe and russia
they’re the largest felines (cats) in europe
Shy animals
Lynx live alone and are difficult to observe The spotted markings on their fur help to camouflage them They sleep almost all day and are
most active at dawn and dusk when they come out to hunt Eurasian lynx eat deer and rodents In Spain and Portugal there’s another even rarer lynx species called
the Iberian lynx They hunt rabbits and some birds.
Trang 25Retractable claws
Lynx walk on their
toes They keep
their claws pulled
in as they walk.
Careful eater
Lynx catch and eat about 100 animals per year
So they don’t hunt every day When they have eaten enough meat, they hide the rest under leaves, earth or snow They return over the next few nights to finish the remains
They leave only the skeleton, skin, stomach and intestines.
forest worker
Lynx have an important role
as predators (hunters) in the forests
They generally hunt sick animals or those animals that are most numerous In this way they help keep down the numbers of herbivores (plant-eaters) and rodents (such
as mice, shrews etc) in the forest.
Victims of poaching
Lynx are a protected species But they’re still regularly killed by poachers’ traps, passing cars and trains They have been reintroduced to many parts of Europe including Switzerland, Italy and France and are now not in danger.
Furry pads
Lynx have tufts of fur between their toes to stop them sinking into the snow.
Trang 26in all oceans and are the most widespread whales in the Mediterranean Sea But they’re endangered.
Shy giant
Although fin whales weigh 50 tonnes and are 20m long, they’re hard to spot They’re shy and often solitary creatures Experts think there are several thousand that live all year round in the Mediterranean Sea.
Trang 27danger at sea
Every year, dozens of fin whales are killed
by cargo ships, car ferries or military ships that don’t see them Fin whales
are also affected by pollution in the Mediterranean
It makes them ill and stops them reproducing.
transmitter beacons
In order to protect fin whales in the Mediterranean, scientists are trying to follow their movements They have attached beacons
to some of them The beacons transmit signals
so the scientists can track the whales
Long body
Their body is long and thin
This helps them to swim fast
They can reach a top speed of
40km per hour.
Baleen
Fin whales are baleen whales They have more than 300 baleen plates close together that act as
a sieve to catch shrimps.
White belly
Fin whales have a white
underside and a dark back.
fin whales come to the surface to breathe every 5 minutes
then they dive back down again.
Trang 28They can easily cover 60km at a trot
in one night.
good appetite
Wolves eat between 1.5 and 2.5kg
of meat per day
They prefer large prey, such as mountain goats or sheep, stags or wild boars They hunt animals that are easy to catch and will provide them with the most food That’s why they sometimes attack farm animals.
Protected but not loved
Wolves almost became extinct
in Europe Now they’re protected but some people still dislike them Shepherds accuse them of killing ewes and putting their herds under stress Hunters don’t like them because they kill their game Every year, a number of wolves are poisoned or shot.
Low numbers
In some countries, there aren’t enough wolves for them to survive Scientists think that if there are fewer than 150 wolves – or around
20 packs – in an area, then the wolf population is likely to disappear
Trang 29are heavy and they
move around awkwardly
on land But they’re
completely at home in the water
Their feet are webbed and their tail
is flat and acts as a rudder Baby
beavers learn to swim a few hours
after they’re born.
Lumberjacks
Beavers depend on trees that grow
on river banks They gnaw at the
base of a tree trunk until it falls
down In four hours they can bring
down a tree with a 25cm diameter
– just using their teeth They eat
the bark, leaves
and fruit of trees
They use the
branches to make
their dams.
dam builder
Beavers pile up hundreds of tree trunks, branches and pebbles in the middle
of a river They make
a dam that slows the water flow and forms
a calm pond The beaver family lives
in the pond They dig their den, called a lodge, into the river bank
The entrance is underwater
so they’re safe there.
Saved
Beavers almost disappeared in
centuries They were hunted for their fur and became extinct in many places, including Great Britain But they’re now being re-introduced Beavers are
an important part of the eco- system The ponds they make are great habitats for other animals
E U R O P E
out of danger!
Beavers are being re- introduced and their numbers in Europe are going up.
!
Beavers are the largest rodents
Trang 30Bees are famous for their honey
They have to work very hard to make this delicious food Forty thousand bees live and work inside one hive Pollen-gathering bees suck up a sweet juice called nectar from flowers When they get back to the hive, they pass the nectar to other bees which turn
it into honey using their saliva.
friends of flowers
Bees also gather tiny grains of pollen from flowers to feed the larvae (young) in their hive As they move from flower to flower, pollen sticks to their body and legs The bees carry it from one flower to another without knowing it
This exchange of pollen helps flowers
to reproduce and grow fruit and seeds.
Poisoned bees
For the last 10 to 15 years, bee keepers have watched bees die in their millions
This is happening mostly in industrialised countries The bees’
environment changed with the introduction of intensive farming They can’t find the same variety
of flowers any more for gathering nectar and pollen They’re also poisoned by pesticides.
Hives in cities
There are several campaigns to save bees all over the world It’s become illegal to sell certain pesticides that particularly affect bees Also bee hives are being set up again in cities where there aren’t any pesticides Bees can produce plenty of good- quality honey in cities.