Elephant seals are remarkable divers, spending up to 1.5 hours underwater and reaching depths of more than 1700 meters in their search for food.
Cuvier’s beaked whales off Cape Hatteras dive farther and stay underwater longer than any other marine mammal. Cuvier’s beaked whales are among the most mysterious and adept mammals on Earth. They can dive deeper and hold their breath longer than any other marine mammal.
Elephant seals, can spend up to two hours in depths nearly 5,000 feet ( more than 1,500 meters ), but typically dive for only a half-hour to 1,640 feet (500 meters ).
Sea lions can remain underwater for an average of 8 to 20 minutes. Unlike dolphins, sea lions exhale before diving. Naturally, their nostrils are closed, but they have special muscles to open them in order to breathe. Sea lions can dive to depths between 450 and 900 feet (135 – 272 m).
Elephant seals have a very large volume of blood, allowing them to hold a large amount of oxygen for use when diving. In addition, they have a larger proportion of oxygen-carrying red blood cells. These adaptations allow elephant seals to dive to such depths and remain underwater for up to two hours.
A Cuvier’s Beaked Whale holds the current record for the longest dive standing at a whopping 138 minute long dive.
Whales. Whale farts, like the animals themselves, are epically large, though they’ve only been captured on camera a few times. But researchers who have been caught downwind of a tooting whale report it’s a rather smelly situation.
Human bone crushes at about 11159 kg per square inch. This means we’d have to dive to about 35.5 km depth before bone crushes. This is three times as deep as the deepest point in our ocean.
Transient killer whales in the North Pacific have been recorded diving for up to 11.2 minutes. Transient whales in the eastern North Pacific often stay submerged for more than 5 minutes and occasionally for more than 15 minutes in a single dive.
Spermaceti and Diving Capabilities One common theory is that the fluid—which hardens to wax when cold—helps the whale alter its buoyancy so it can dive deep and rise again. Sperm whales are known to dive as deep as 3,280 feet in search of squid to eat.
The common dolphin ( delphinus delphis ) holds the title for fastest marine mammal, reaching speeds of 60 km/h (37 mph).
The champion diver among whales can stay underwater for more than 3½ hours — an unparalleled diving record for any mammal. Cuvier’s beaked whales (Ziphius cavirostris), which live in deep waters around the world, are capable of reaching depths of almost 3,000 metres when hunting for squid and other food.
Sailing is a behavior sea lions use to warm up or cool down in the water by resting with only flippers and nose visible above the water. When a number of sea lions cluster together to rest or sleep, it is known as rafting. Typically this will occur in areas where there is no suitable haul-out.
Although the Cove Stench unpredictably comes and goes depending on the day, when it’s there, it is unmissable. It’s the smell of sea -animal feces produced by hundreds of nearby animals resting on the rocks: pelicans, cormorants, and, most prominently, sea lions.
Jenny points out that “The eyes of many seal species are oriented toward the top of their head. Unless they are diving very deep, swimming upside down gives them a better view of their surroundings.” He confirms that captive fur seals swim upside down about half the time.