Galapagos Sea Lion

March 12, 2012 by staff 

Galapagos Sea Lion, The Galapagos sea lion (Zalophus wollebaeki), a species of sea lion, exclusively breeds on the Galapagos Islands and – in smaller numbers – on Isla de la Plata (to Ecuador). Being fairly social, and one of the most numerous species in the Galapagos archipelago, they are often spotted sun-bathing on sandy shores or rock groups or gliding gracefully through the surf.

Their loud bark, playful nature, and graceful agility in water make them the “welcoming party” of the islands.
Slightly smaller than their Californian relatives, Galapagos sea lions range from 150to 250 cm in length and weigh between 50 and 400 kg, with the males averaging larger than females.

Adult males also tend to have a thicker, more robust neck, chest, and shoulders in comparison to their slender abdomen. Females are somewhat opposite males, with a longer, more slender neck and thick torso. Once sexually mature, a male’s sagittal crest enlarges, forming a small, characteristic bump-like projection on their forehead.

Galapagos sea lions, compared to California sea lions, have a slightly smaller sagittal crest and a shorter muzzle. Adult females and juveniles lack this physical characteristic altogether with a nearly flat head and little or no forehead.

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