A new report finds the decline in vertebrate abundance over the past four decades is most severe in South and Central America.

The new finding could aid tiger conservation, with only 4,000 of the big cats remaining.

Data gathered from GPS-equipped collars show the animals walk long distances over days without stopping for a drink.

Diseases threaten the pride’s existence and wildlife experts recommend relocating some lions to a sanctuary, but Gujarat state has refused.

He established the San Diego Zoo’s cryopreserved Frozen Zoo.

Officials in one county are running operations to clean up the rotting fish.

A case in which the University of Florida killed birds to protect crop research raises questions on the ethics of field studies’ potential side effects.

Researchers must consider the entire ecosystem when planning conservation strategies.

From the difficulty of tracking rare populations to the danger of poachers exploiting distribution data, the complications of studying endangered species require creative solutions from researchers.