Plants

Introduced rabbits threatened the unique birds of Chile’s Humboldt Penguin Natural Reserve. But after a century of devastation, hope has returned.

Wolves and polar bears are great, but so are bats, fish, plants and invertebrates (among others worthy of our attention).

Artist Ralph Steadman and writer Ceri Levy make us laugh while worrying about extinction.

At least 21 percent of plant species are threatened with extinction, but much remains to be discovered.

Many species could go extinct if the border wall is built, experts warn.