weddell seal การใช้
- Weddell seals are commonly sighted by visitors to the Erebus Ice Tongue.
- It is the only place in South Georgia where Weddell seals breed.
- Out of all permanent mammalian residents, the Weddell seals live the furthest south.
- Weddell seals have no natural predators when on fast ice.
- Weddell seals'mild temperaments make them easy to work with.
- Weddell seals in particular had fascinated researchers because of how long they dive without breathing.
- The Weddell seal out-dives even the emperor penguin.
- Weddell seals have one up on the penguins.
- During the mating season, Weddell seals make noises loud enough to be felt through the ice.
- Scientists believe Weddell seals rely mainly on eyesight to hunt for food when light is available.
- This enables them to dive at extreme depths ( 600 m for the Weddell seal ).
- "Three Emperor penguins and a pregnant Weddell seal have been seen around the base, " he said.
- The Weddell seal is protected by the Antarctic Treaty and the Convention for the Conservation of Antarctic Seals.
- The Weddell seal, a " true seal ", is named after icefish, penguins, albatrosses and many other birds.
- The Convention for the Conservation of Antarctic Seals allows limited hunting of crabeater seals, leopard seals and Weddell seals.
- The Weddell seal grows a thin fur coat around its whole body except for small areas around the flippers.
- Young Weddell seals have gray pelage for the first 3 to 4 weeks; later, they turn a darker color.
- Weddell seals and Skuas are also inhabitants of McMurdo Sound and their populations may have been affected as well.
- Weddell seals and elephant seals can dive up to a mile ( sperm whales go much deeper than that ).
- Each year 300 to 400 Weddell seal pups are born to a colony of seals that live in adjoining Erebus Bay.
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