But those animals have nothing on beaked whales. Gray seals give birth once a year and females will quickly lose ~30% of their body mass while the pup triples in. Through the dark, turbid waters, she searches for fish.
Whoi biologist rebecca gast examines whether the recovered and thriving population of gray seals in cape cod waters has affected water quality off the beaches they. New research shows weddell seals avoid making extreme dives for prey during midday, allowing the seals to keep diving over and over without having to pause for long. They feed on shrimp, krill, and other small crustaceans.
A harbor seal plunges into the water, diving deep as the sunlight recedes. The ringed seal (phoca hispida) is the smallest arctic seal, and most common. Heart monitors for seal pups are helping scientists track animal health images and captions, credits are here woods hole, mass. Seals are pinnipeds, a group of animals with three separate families—phocidae, otaridae, and odobenidae—that are the only mammals that feed in the water and breed on land.
The harp seal (phoca groenlandica) is a deeper. A female grey seal nursing her pup on the beaches of sable island, nova scotia. For years, sperm whales and elephant seals were thought to hold world records for holding their breath under water.