There are three species of land iguana found in Galapagos. Conolophus subcristatus is found on 6 islands, Conolophus pallidus is found only on Santa Fe Island and Conolophus rosada is the famous pink iguana found on Wolf volcano on Isabela Island.
Land iguanas sleep in burrows at night, and have a special relationship with the Galapagos finches. The iguanas stretch their bodies and allow the finches to remove ticks from them.
They generally lay between 2 and 20 eggs and nests are guarded for a few days to prevent other females filling the nests with their own eggs. Meanwhile, male iguanas are protective over their territory and defend them by bobbing their heads, biting, and thrashing their tails.
For further information you can visit: