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 đồ sộ persuade the governments đồ sộ see the need đồ sộ preserve biological diversity.

Through the years they have made significant contributions đồ sộ species conservation.

There are several reasons why we should protect endangered species.

We need đồ sộ take action đồ sộ help preserve fish stocks.

At the moment it is difficult đồ sộ assess the extent of the damage that his company has caused đồ sộ 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 đồ sộ mạ was the way the creatures moved.

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All types of dinosaurs went extinct long time ago.

We need đồ sộ 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 đồ sộ 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 đồ sộ the survival of these creatures comes from their loss of habitat.