Above: Two male sea turtles struggling to mate with the same female.

Below: Flightless cormorant—only found in the Galapagos.

Below: A pile of marine iguanas — also found only in the Galapagos.


Editor’s note: Click here for part 1, and look out for part 3 next Saturday. All images are copyright of Michael Sheldon and cannot be copied or used without his permission. Visit msheldon.com for more of his work