The Galapagos green sea turtle is similar to the common green turtle that inhabits all around the Pacific Ocean; however, the Galapagos green turtle has been considered a different species because it lives and nests only in the archipelago. They are migratory animals but studies suggest that in the Galapagos, they have a patterned route.
These animals can weight bout 150kg and feed mainly on algae. Sometimes the turtle would eat jellyfish or other animal matter. They can swim at a speed of 35 miles per hour.
Females lay around 70 eggs every two or three years between the months of December to June, with the peak on February. Sometimes, they will make a false nest next to the other to fool predators, and the eggs incubate for about 50 days. They are never seen mating outside the season and it is only the female that comes out the water to prepare the nest and lay the eggs. Males stay submerged most of their life since they can hold their breath for longer than two hours. Males and females are mostly identical; the only difference is that the female is a bit larger and the male has a more concave plastron to fit the female carapace when mating.
These turtles are protected from exploitation in most countries including Ecuador, as it is considered an endangered species. Introduced predators such as pigs and rats in the Galapagos have caused a great reduction of individuals, due to the fact that their natural predators are most marine birds on their youngest stage and a Galapagos beetle whose larvae that feed on the eggs.
They are usually seen on the bays and shorelines of shallow water, and rest in the sandy bottoms in large groups. If approached slowly, they are fearless to humans.