- Adult elephant seals can grow up to 20 feet (6 meters) in length and weigh 8800 pounds (3991 kgs). That’s almost twice the length & weight of a midsize truck or SUV!
- Elephant seals can hold their breath underwater for more than two hours straight.
- Elephant seals get their names from their large trunk-like snouts called “proboscis”. These appendages grow only on males and develop during puberty. Males use this appendage during mating to attract females (using a series of snorts & grunts) and as shields to protect themselves during fights with competing males.
- Elephant seals produce concentrated, jelly-like urine when there is a lack of drinking water in their surroundings. This concentrated urine helps them conserve water in the body for later use. But the moment they drink water, their urine becomes normal and more liquid-like.
- Beachmasters are the alpha adult males in a group of male elephant seals. They are the ones who are the strongest of the lot and who possess the best spots on the beach. It is important for the beachmasters to create a big space on the rookery (the beach selected for breeding) if they wish to attract & control a large harem of females.
Elephant seals usually mate a few months before winter. This is to ensure that the pups are born during the ideal breeding season when the weather isn’t too cold or too hot. But, females have what is called a “delayed implantation”.
The normal gestation period for elephant seals is 9 months. However, due to the delayed implantation it takes up to 12 months for pups to be born. So, if the weather is not right for the pups’ birth or males haven’t established their territories on the rookery in time, this delayed implantation gives them sufficient time to create or wait for better breeding conditions. This is nature’s way of ensuring greater number of live births during the harsh winter.
Video: Epic fights and all the excitement of the breeding season