Cuvier's beaked whales

(Newser) - It's a mystery how Cuvier's beaked whales go so long without a gulp of air. Based on its body size and metabolism, scientists originally thought the whale would need to resurface every 33 minutes. But one beaked whale just went seven times as long underwater—3 hours, 42...

(Newser) - Cuvier's beaked whales are a rare sight—perhaps because they appear to be the deepest-diving mammals in existence. In a new study, researchers found that the creatures were able to reach a depth of nearly 1.9 miles, Reuters reports. In another record-breaking dive, a beaked whale was able...