Species Near Extinction
The Sixth Mass Extinction has animals disappearing about 100 times faster than they used to. The past rate was two mammal extinctions per 10,000 species per 100 years. About 41 percent of all amphibian species and 26 percent of all mammals are threatened with extinction, including humans.
Predator Defense Invasive Species
Dugon in Egypt Sea-Cow (youtube) Manatee (wiki)
A study of more than 2,200 species finds that humans are the planet’s most deadly natural-born killers. Science Mag
Food Chain (wiki)
Plants that have gone extinct
List of Extinct Plants (wiki)