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Why animals become extinct
If an environment changes an animal may not be as well
adapted
It will be forced to compete with other species
This may result in species becoming endangered or extinct
The environment can change two ways:
Naturally, such as an ice age
Artificially, normally as a result of human activities, such as
destruction of habitats for farming or building and pollution
of rivers or lakes by industry
Other animals, such as the great
auk, have become extinct because
humans have hunted…read more

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Hunting
Pollution
Competition
Habit destruction
Climate change
Nowadays we recognise the possibility of extinction, and put
the programmes in place to protect endangered species
Endangered species
Many animal and plants are in danger of becoming extinct
A species is endangered when its number are so low it is
difficult for the population to rise
In Britain people are protecting endangered species such as
the red squirrel, red kite, and osprey
This is called conservation
It is important to save these animals so future generations
can…read more

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Whales
One of the species that is endangered is the whale because
of hunting
Different types of whales
Whales are mammals that live in seawater; there are two
types of whales:
The baleen whale eats small animals called krill
The whale sieves the water through baleen plates in its
mouth trapping the krill…read more

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Toothed whales, such as the sperm whale, have lots of teeth
to trap food such as squid
Where whales live
Different whale species are found in different seas
This is because they eat different food
Some whales even move from place to place following their
food
This is called migration…read more

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What whales are used for?
There are many uses for whales, both dead and alive; every
bit can be used for something which is why they are hunted
so much
Whales have been hunted for hundreds of years
Their parts have many uses, selling the whale parts earns
the hunters money
Whale hunting has largely been stopped however, there are
still some countries breaking the law e.g.…read more

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Sustainable development
To ensure we do not run out of important resources we need
to plan for the future
Sustainable development is a way of taking things from the
environment but leaving enough behind to ensure a supply for
the future and prevent permanent damage
Fishing quotas
Scientists have worked out how many fish can be taken from
the sea and leave enough to reproduce and maintain the
population
Fishermen have then been set quotas
Many fishermen see the quotas as a threat to their…read more

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Fossil fuels will run out, yet there is an increase demand for
them
Therefore we must manage alternative fuels such as wood
The demand for food and other resources could lead to an
increase in whaling
The whaling nations will need to work together to prevent
extinction
When whaling quotas are set, other factors will need to be taken
into account; these include:
Pollution levels
Over ­ fishing of the whales' food source…read more

Comments

Nora Mo

Cheers


Miss Meera J

Helpful :)


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