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A species of sea lion that exclusively breeds on the Galápagos Islands. sea lions range from 150 to 250 cm (59 to 98 in) in length and weigh between 50 to 400 kg (110 to 880 lb), 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. Both male and female sea lions have a pointy, whiskered nose and somewhat long, narrow muzzle. The young pups are almost dog-like in profile. Another characteristic that defines the sea lion are their external ear-like pinnae flaps. When wet, sea lions are a shade of dark brown, but once dry, their color varies greatly.
Galápagos sea lions can be found on each of the different islands of the Galápagos.