Sunday, December 30, 2012
Which mammal can stay underwater the longest?
Each day a sperm whale eats 2,000 pounds of giant squid, octopus, and cuttlefish. This diet maintains the whale's body: 60 feet in length and weighing as much as 140,000 pounds (70 tons). The sperm whale was once hunted to near extinction. Currently the world's population of sperm whales is about 500,000; the number killed by hunters has decreased drastically during the past 40 years.