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
Baby narwhals, called calves, typically weigh around 175-250 pounds when they are born. The weight can vary depending on the individual and the conditions in their environment.
250 kg i think
12
3/4 tons
elephant seal weight 6000 lb (2700 kg).
A harbor seal weighs about 100 pounds. (size may vary because of seal sex)
At 12 days old, a seal pup typically weighs between 20 to 30 pounds (9 to 14 kg), depending on the species. For example, harbor seal pups can weigh around this range, while other species may vary slightly. They gain weight rapidly as they nurse and develop during their early weeks.
591Kg at most but not for sure
1 pound
Male seals weigh up to 375 pounds; female seals weigh up to 331 pounds.
The Weddell seal weighs up to 1000 pounds once they are fully grown.
A mother seal weighs about 420 pounds.