California sea lion
Swim, Snorkel, Dive, See, Meet, Watch the California sea lion
California sea lions live in bays, harbors, and river mouths. They are excellent swimmers, which allows them to hunt underwater. They are 2 m long and weigh between 100 and 400 kg. It lives until the age of 17 to 25 years depending on the sex.
An important colony of California sea lions is found in the Los Islotes Archipelago north of Espiritu Santo Island, 30 km from La Paz. This place was declared a biosphere reserve by UNESCO in 2005. Sea lions are curious, playful and willing to approach divers.
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Zalophus californianus
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Lion de mer de Californie, California sea lion, Zalophus californianus
Food
The sea lion is a carnivorous mammal. It eats salmon, anchovies, hake, jacks, mackerel, octopus and squid.
The weight of the male is four times that of the female. and the size of the male is one and a half times that of the female.
Breeding
Sea lions reach sexual maturity at about five years of age. The breeding period is from May to July.
At this time, sea lions congregate by the thousands on the coast. The male first takes possession of a territory. Then he attracts the largest number of females. Then he prevents the females from leaving.
This policing exhausts him because he doesn't feed during this time. The males then mate with several females. They remain territorial, guarding their harem.
The gestation period lasts eleven months. Between May and June, the births take place. The newborns have a thick black down that disappears when they molt. Females have one calf per year. They stay with their newborn for a week. Then they go out to look for food.
For nearly six months the females accompany their juveniles. After breeding, the males migrate to British Columbia and the Aleutian Islands.
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