For the U.S., Kerry is to sign the agreement Friday and then President Obama will ratify it before he leaves office in December, a senior U.S. official told CBS News in a conference call this week.
Time Frame. The average dolphin species can stay underwater for as long as eight to 10 minutes; some can remain submerged while holding their breath for 15 minutes. Dolphins breathe through their blowhole, which has a muscular flap that covers it when they go under water, keeping water out of their lungs. Size.
Best Answer: It depends on the type of whale. Killer whales can hold their breath for about 20 minutes while Sperm whales can hold their breath for over an hour! If the whale is a deep-diving whale, it can typically hold it's breath longer than more shallow diving whales. Also, dolphins (a killer whale is the largest in the dolphin family) can't hold their breath as long as true whales.