In Kazakhstan, saiga antelope are dying by the thousands, and nobody knows precisely why.

Trade in elephant ivory and rhino horn is banned in most countries, but every effort must be made to turn the consumption of wildlife products from status symbol into stigma.

Giant snail farming may be the only hope to save an endangered gorilla species in Cameroon.

The oceans may be on the verge of biological collapse, can international marine reserves save them?

The Española giant tortoise, once feared extinct, has a viable population again.

Martha, last of the passenger pigeons. 

Biological research tracks predatory carnivores, who are increasingly veering into North American cities.