crabeater seal การใช้

• Scientists diving in McMurdo also encounter the leopard seal, and crabeater seal.
• Currently, no reliable estimates of the total crabeater seal population are available.
• Crabeater seals give birth during the Antarctic spring from September to December.
• Curiously, crabeater seals have been known to wander further inland than any other pinniped.
• The crabeater seal spends most of its life in the same waters feeding on krill.
• The first footage showing Antarctic killer whales hunting a crabeater seal, but the seal survived.
• The leopard seal is known to prey on numerous other species, especially the crabeater seal.
• Despite its name, the crabeater seal eats mainly krill-- small shrimp-like crustaceans that inhabit Antarctic waters.
• Crabeater seals spend most of their time at sea, so they are the least-studied of the Antarctic seals.
• The Convention for the Conservation of Antarctic Seals allows limited hunting of crabeater seals, leopard seals and Weddell seals.
• There is very little difference between an effective dose and a lethal dose of anesthetic in crabeater seals, she said.
• Crabeater seals, one of the most numerous mammals on Earth, live and reproduce in the pack ice zone around Antarctica.
• Crabeater seals have a population of around 15 million, making them one of the most numerous large animals on the planet.
• The crabeater seal shares a common recent ancestor with the other Antarctic seals, which are together known as the lobodontine seals.
• The committee recognized that the program was risky because so little is known about the crabeater seal's tolerance to anesthetic, Haywood said.
• Its front teeth are sharp like those of other carnivores, but its krill from the water, in the manner of the crabeater seal.
• Crabeater seals have an atypical, serpentine gait when on ice or land, combining retractions of the foreflippers with undulations of the lumbar region.
• Also among the ship's passengers is population biologist Colin Southwell, who will conduct a trial survey of the distribution and behavior of the crabeater seal.
• Crabeater seals are the most numerous species of seal in the Southern Ocean, with a population estimate at anywhere between 15 million and 70 million.
• Biologists have suspended a project to study crabeater seals in Antarctica after two of the first four seals captured, anesthetized and tagged died during the procedure.