lord of the files
Science 10 ecology project
① Extinction of species
A species becomes extinct when its last representative dies.
Extinction is forever - Once a species become extinct will never been seen again.
This has happened quite a lot of times on Earth.
Due, in many cases, to colonization and hunting by humans.
People feel that extinction is very sad, and try to protect life-forms on the brink of extinction by naming them "endangered species" and being nice to them.
Each living organism which humans force into extinction is a tragedy for nature.
Over fishing or excessive hunting by humans can reduce the populations of certain organisms on Earth.
Animals are hunted for their fur, meat or other valuable parts of their bodies.
http://www.galactic-guide.com/articles/2R84.html
http://www.saburchill.com/hfns02/chapters/chap019.html
1. lost of habitat......
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