List Of What Do Elephant Seal Cows Eat References. Unlike other seals, which may have harems averaging 40 cows, a dominant bull elephant seal may have only a dozen cows within his territory. An average adult southern male may weigh 3,000 kg (6,600 lb) and reach a length of 5 m (16 ft), while the adult female (cow) weighs about 900 kg (2,000 lb) and it measures about 3 m (10 ft) long.
The endangered new zealand sea lion, for example, eats not only fish but squid and octopus and crustaceans such as shrimp. Unlike other seals, which may have harems averaging 40 cows, a dominant bull elephant seal may have only a dozen cows within his territory. Males of both species are much larger than females.
