Fur seal pups generally weigh about 5 - 12 lbs at birth and gain excessive amounts of blubber and weight through drinking its mother's milk which consists of marine oil, milk, and butter-like substances. They are about two feet long also.
around 40 kg
1 pound
13 pounds
80 pounds
250 kg i think
12
3/4 tons
about 13-12 pounds or 15 trust me I know I read this in a book and alot of peeps say it to so BELIVE ME
A harbor seal weighs about 100 pounds. (size may vary because of seal sex)
elephant seal weight 6000 lb (2700 kg).
males weigh around 140 kg while females weigh 50 kg
1 pound
591Kg at most but not for sure
The Weddell seal weighs up to 1000 pounds once they are fully grown.
Male seals weigh up to 375 pounds; female seals weigh up to 331 pounds.