Why does an animal become extinct?

There are animal facts that extinction of an entire species can happen very suddenly or gradually over thousands of years and are happening. Let’s see  the reason why:

The Floida Panther

Almost all extinctions today are caused by human activity. The three main human activities are Habitat loss, Introducing Non-Native Species and Hunting and Harvesting.

Habitat loss

The biggest cause of extinctions is from species losing their homes, or habitat. Clearing forests, draining wetlands, damming rivers, turning grasslands into farming areas and putting human structures in the natural environment all remove natural habitat. Most species are adapted to a specific habitat and cannot live anywhere else.

Introducing Non-Native Species

Most of the worst pests in Australia have been introduced from other countries by people. These animals and plants do not have any natural predators so they often spread very fast and take over habitat and food sources from native species. Rabbits, foxes, cane toads and blackberries are examples of introduced species. Many native species have become endangered or extinct because they have been killed, had their food eaten or lost their habitat due to introduced species. You can help by never letting any pets or aquarium fish into the wild.

For more: tiger facts

Hunting and Harvesting

Some animals, like rhinos, tigers and bears are hunted in the wild for their skins, tusks and other products. Many of these large animals take a long time to reproduce and so are very close to extinction. Sea animals like whales and seals are also hunted for their meat and skins, while overfishing has caused many of the world’s fish species to decline in large numbers.

The process of natural extinction is slower than man-made extinction. Natural triggers for extinction include climatic heating and cooling, changes in sea levels and currents, acid rain, disease epidemics, and the spread of invasive species.

For other facts of life

Share this Post :

No comments yet.

Leave a Reply

© 2016 News of The World Games - International World Games Association. All Rights Reserved.
review | facts of life