A military lab found distinctive damage from repeated blast exposure in every brain it tested, but Navy SEAL leaders were kept in the dark about the pattern. Longtime Navy SEALs like David Metcalf, ...

Biologists have identified some of the brain chemicals that allow seals to sleep with half of their brain at a time. A new study led by an international team of biologists has identified some of the ...

Seals shiver when exposed to cold air but not when diving in chilly water, a finding that researchers believe allows the diving seal to conserve oxygen and minimize brain damage that could result from ...