Diving is physiologically challenging for marine animals. Long and deep dives can trigger "anaerobic" (oxygen-less) ...

A recent study of Dutch Carbbean coral reefs shows that human activity and coastal development are impacting reef shark behavior.

Scuba-diving lizards have an aquatic trick up their sleeves: They can create air bubbles on their foreheads to breathe underwater, enabling them to stay submerged for long periods and escape predators ...

While humans panic when they can't breathe, seals stay calm by tracking their actual oxygen levels even while diving deep ...