the main threat to the survival of these creatures comes from their loss of habitat

Darwin's theory of evolution incorporates the principle of natural selection.

Environmentalists try to lớn persuade the governments to lớn see the need to lớn preserve biological diversity.

Through the years they have made significant contributions to lớn species conservation.

There are several reasons why we should protect endangered species.

We need to lớn take action to lớn help preserve fish stocks.

At the moment it is difficult to lớn assess the extent of the damage that his company has caused to lớn the environment.

The rainforest is being systematically destroyed.

A number of mammal species roamed widely around the northern hemisphere.

Komodo dragons are fierce hunters and can eat very large preys.

What was fascinating to lớn mạ was the way the creatures moved.

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All types of dinosaurs went extinct long time ago.

We need to lớn prepare for our biology assignment about endangered plant species.

These animals are quite vulnerable when living near the industrial zone.

Every year, in Africa a lot of elephants are poached for tusks.

More complex animals gradually evolved from these very simple creatures.

Many species are threatened in the wild due to lớn habitat destruction by man.

These animals are n ow on the verge of extinction.

This forest contains many rare specie of plants.

Many birds didn't survive the severe winter.

The main threat to lớn the survival of these creatures comes from their loss of habitat.