Once critically endangered, mountain gorillas are now the only great ape species whose population is increasing, thanks to ...

In fact, many populations are stable or growing, while a small number of species faces truly existential challenges. These photos capture some specific crises. They are images of threats unfolding ...

Chinstrap penguins (Pygoscelis antarcticus) and gentoo penguins (P. papua) both live in the Antarctic Peninsula region of Antarctica, but the two species have different eating habits. While chinstraps ...

Current population growth trends indicate that the number of threatened species will increase by 7 percent over the next 20 years and 14 percent by 2050. And that’s without the addition of global ...