Story by Michelle Kinzel, OSU How do you study the sperm whale, Physeter catadon, when they dive up to 3 km (1.9 miles) to the bottom of the ocean floor and stay submerged up to 90 minutes? Sperm whales reach lengths of 18 m (60 ft) and possess blood volumes up to 3 tonnes. The . . . → Read More: Studying whale behavior from Davey Jones locker