Southern Elephant Seal
Nothing can prepare you for the astonishing size of these amazing creatures!
What you need to know about the Southern Elephant Seal
Our Expert Says… "Rather than collecting harems as some people think, male Elephant seals are fighting over who controls the best bit of the beach as far as the females are concerned! This is because the females come into season a short time after their pups are weaned and those that are in "his patch" will be ready to accept his advances."
Southern Elephant Seals are a remarkable sight! The adult males can grow up to 5.7m (19ft) in length and weigh in at over 3,600kg (8,000lb)! The females, while still enormous by most standards, are dwarfed by these huge bulls, even though they themselves can be over 2.7m (9ft) long and weigh up to 860kg (1,900lb).
In fact, the Southern Elephant seal is the world’s largest non-cetacean marine mammal, and there are thought to be about 750,000 of them. They range throughout most of the southern oceans, feeding close to the Antarctic continent, but they travel to the subantarctic islands to breed.
One of the most important breeding areas is South Georgia Island, where over 110,000 breeding females have been counted. There is also a significant presence of Southern Elephant Seals in the Falkland Islands.
Their breeding season runs from August to November and starts with the huge bulls gathering on the breeding beaches to fight for control of areas which will become their harem when the females arrive. The males will be at their biggest, having put on huge reserves of blubber as an energy store as they will stay on the beach guarding their territory for the whole season. Males fight by squaring up to each other and using their massive weight to push and their sharp canine teeth to gouge each other. Despite sometimes deep and dramatic wounds, these fights are rarely fatal, the losing bull usually fleeing before it’s too late.
Adding yet another record to its haul, the Southern Elephant Seal is the deepest and longest diving of all non-cetacean marine mammals. SCientists using tracking devices have measured adult seals diving for over 20 minutes and reaching depths of over 7,000ft!
Despite their huge size, Southern Elephant Seals are not immune to predators. Even adults are hunted by orcas, and pups can be taken by leopard seals.
The population of Elephant seals is currently thought to be declining, despite their breeding areas being protected. It’s thought that climate change may be impacting the availability of their food supply and its ability to support a growing population.