It has the largest mouth of any animal and uses its truck-sized curved head to batter through Arctic ice to surface from the depths.And while swimming in freezing waters and smashing cranium-first up ...

“A normal size pod of common dolphins is somewhere between 100-500,” Domenic Biagini, owner of Gone Whale Watching San Diego ...

Deep underwater and high in the night sky, creatures use sound to see what eyes cannot. Through evolutionary biology and acoustic science, this episode reveals how echolocation emerged in bats, whales ...