It must be a slightly surreal sight. Imagine being a diver and coming across a group of sperm whales, not swimming but floating upright and motionless in the open sea. If you ever see such a scene ...

Sperm whales are the largest toothed whales and are known for their extreme diving abilities. They often go down to 3,000 feet in search of squid, their primary food source. These dives can last ...

Sperm whales nap vertically for between 6 and 25 minutes, but are awake 93 percent of the time. ... Man Jumps Off From Floating Car; Another Person Gets Stuck Inside Vehicle.

Video footage showed six sperm whales eerily floating vertically in a motionless manner, with their heads either at or just below the surface of the sea. Researchers said three of them were "unusually ...

Sperm whales nap vertically for between six and 25 minutes, but are awake 93% of the time; The pod of ten whales was photographed just off the coast of the Caribbean island Dominica ...

A photo shows a pod of sleeping sperm whales. These whales sleep vertically, very close to the surface. Alexis Rosenfeld/Getty Images. Whales have some of the largest brains on the planet.

Popular photos have surfaced online showing sperm whales gathered together, seemingly motionless and arranged vertically in the water. The whales, which are roughly the size of school buses ...

Sperm whales (Physeter macrocephalus) are the largest toothed whales, with enormous square-shaped heads and the biggest brains of any animal on Earth. These deep-divers are known for hunting down ...

A sperm whale carcass that washed up in Hawaii looks more like a gigantic marshmallow than a dead marine mammal. Photo taken under NOAA permit #932-1905.

Sperm whales are social beings; individuals associate in families, who then collect in clans. The males, who can reach 100,000 pounds to females’ 30,000, stay with their mothers for a decade ...