Marine iguana (Amblyrhynchus cristatus). Rábida Island
It seems to me, though I have no scientific knowledge in this matter, that these animals are the true representative of the saurians that have remained on earth until this day. The marine iguanas are very gentle and delicate in their behaviour, incapable of any aggression toward other animals. On the contrary, they even let others, like birds or lava lizards, climb on their back. They mingle easily with the cormorants, the sea lions, the fur seals, the pelicans, the boobies and others. When the birds are nervous they pick on the iguanas, who do not fight back. The young sea lions mock them and play at pulling the iguanas’ tails, especially while they are swimming. But the marine iguanas just let it go.(via Guardian Unlimited)