Area of Focus: Mammals

More ice-free days may eliminate these populations

Biologists have confirmed one pup but say more may be possible

Researchers worry hybrid bears may be unfit for the harsh Arctic

A recent study found densities were a tenth of what researchers found 40 years ago

A recent study suggests that, like ecosystems, science was reshaped by the loss of wolves

The oral vaccine is intended to protect deer from bovine tuberculosis

"This is a task we never take lightly,” the agency said

The proposal offers a middle ground on herd sizes

The species was one of 12 whose statuses were being reconsidered

The species was believed to be extirpated from Niokolo-Koba National Park