unit 9: undersea world

Read the description of the sperm whale and then answer the following questions Sperm whales are the biggest animals on Earth that have teeth.. A female sperm whale give birth to one ca

UNDERSEA WORLD

Eg: How many offsprings does this cat have?

a child, the young of an animal

to entrap (v) /in'træp/

entrapment (n)

to put or catch sb/sth in a place or

situation from which they can not escape

habitat (n) / / the natural environment of an animal

offspring (n) /' :fspriη ɔ / a child, the young of an animal

life span (n) the length of time that something is likely

to live

carnivore/ / any animals that eat meat

Read the description of the sperm whale and then

answer the following questions

Sperm whales are the biggest animals on Earth that have

teeth They are carnivores, which means they eat meat

Although sperm whales can be found in all oceans, they

prefer the waters with high squid populations, which are the main diet A sperm whale can eat up to 1,500 kg of food

each day Sperm whales are big animals The males can

grow up to 18 meters long and weigh up to 54,000 kg while the females are a bit smaller with a length of 12 meters and a weight of 17,000 kg A female sperm whale give birth to one calf every five to seven years after a gestation period of

fourteen to nineteen months The life span of sperm whales can be up to sixty or seventy years It is interesting to know that they also have the largest brain of any mammals Sperm whale populations are at risk due to hunting and their

accidental entrapment in fishing nets

Answer the following questions

1 Where can sperm whales be found ?

2 Which waters do they prefer?

3 What are the weight and the length of a male / female

sperm whale?

4 How much food do they eat each day?

5 How long is a gestation period ?

6 How often do they give birth to one calf ?

7 How long / How many years can sperm whales live ?

8 What are some special features of sperm whales ?

9 Why should people be concerned about endangered

whales ?

Range and habitat

Answer the following questions

1 Where can sperm whales be found ?

2 Which waters do they prefer?

3 What are the weight and the length of male / female sperm

whales?

4 How much food can a sperm whale eat each day?

 They can be found in all oceans.

 They prefer waters with high squid populations.

 The males can grow up to 18 meters long and weigh up to 54,000 kg while the females are a bit smaller with the length of

12 meters and a weight of 17,000 kg.

 It can eat up to 1,500 kg of food each day.

5 How long is a gestation period ?

6 How often does a sperm whale give birth to one calf ?

7 How long / How many years can sperm whales live ?

8 What are some special features of sperm whales ?

9 Why should people be concerned about endangered whales ?

 It is between fourteen and nineteen months

 It gives birth to one calf every five to seven years.

 They can live up to sixty or seventy years

 They are the biggest animals on earth that have

teeth, and they also have the largest brain of any

mammals.

Because sperm whales populations are at risk due to

hunting and their accidental entrapment in fishing nets

Carnivores Eat meat Eat up to 1,500 kg of food daily

Give birth to one calf every five to seven years Gestation period: 14 to 19 months

Up to sixty or seventy years

Biggest animals that have teeth on Earth Have the largest brain of any mammals

At risk due to hunting and their accidental entrapment in fishing nets.

DOLPHIN

1.RANGE AND HABITAT Oceans worldwide

Prefer coastal waters and bays

2.SIZE Smallest: about 50 kg and 1.2 m

Largest: up to 8,200 kg and 10m

3.FEEDING HABITS Carnivores Eat mostly fish

4.OFFSPRING Give birth to one calf every 2 years

Gestation period: 11-12 months

5.LIFE SPAN From 25 to 65 years

Sometimes longer, depending on the species

7.CONSERVATION At risk due to habitat pollution and

Mammals, not fish Among the most intelligent animals 6.SPECIAL FEATURES

a Dolphins are carnivores and they eat mainly fish.

b Although they can be found in all oceans, they prefer coastal waters and bays.

c A female dolphin gives birth to one calf every two years after a

gestation period of eleven to twelve months.

d Dolphin populations are at risk due to the pollution of their habitat

and accidental entrapment in fishing nets.

f Dolphins are among the most intelligent animals on Earth.

g The size of dolphins vary greatly The smallest dolphin is just about 50

kg in weight and 1.2 meters in length while the largest one can weigh up

to 8,200 kg and is 10 meters long.

e A dolphin can normally live from twenty-five to sixty-five years and some species of dolphins can even live longer.

Task 2: Rearrange the following sentences to make a complete

description of a dolphin, beginning with “ Dolphins are not fish They

are mammals that live in the water ”.

Dolphins are not fish They are mammals that live in the water Dolphins are among the most intelligent animals

on earth Although they can be found in all oceans, they prefer coastal waters and bays The size of dolphins vary greatly The smallest dolphin is just about 50 kg in weight and 1.2 meters in length while the largest one can weigh

up to 8,200 kg and is 10 meters long Dolphins are

carnivores and they eat mainly fish A female dolphin

gives birth to one calf every two years after a gestation

period of eleven to twelve months A dolphin can

normally live from twenty-five to sixty-five years and

some species of dolphins can even live longer Dolphin populations are at risk due to the pollution of their habitat and accidental entrapment in fishing nets.

dolphi

spem whale

turtle shark

seal

whale