Area of Focus: Physiology & Nutrition

Northern elephant seals get just two hours of sleep at sea, taking deep dives below predators

Recent findings upend the previous understanding of how songbirds make such long journeys

After rapid glacier melt, mammals that disperse farther are quicker to move into newly vegetated areas

Mule deer and pronghorn are succumbing to starvation in parts of Wyoming and Utah

Carcasses of birds that collided with windows offer scientists a view into their interior world

Managers fed manatees nearly 400,000 pounds of lettuce to protect them from starvation

Stopovers aren’t just to refuel, researchers found

Biologists are monitoring an important California bighorn sheep population

Researchers tracked mule deer across Wyoming to find what drives their movements

Researchers captured videos of injured moose using game trails in northern British Columbia