Certain animals store oxygen in their muscles using myoglobin protein. This adaptation allows marine mammals like seals and whales to dive for extended periods. Birds and semi-aquatic mammals also ...
Drew Dirksen tests how long he can survive underwater in an endurance challenge.
HAMBURG, Germany — Nobody can take a deeper breath than Tom Sietas. The 31-year-old German has blown away the competition in the nascent sport of “free diving,” in which people vie to see how long ...