Marty’s photo of the day #4958: You are looking at Christmas tree marine iguanas (also known as Española marine iguanas) making more Christmas tree marine iguanas. These lizards are a subspecies found only on Española island. While most marine iguanas are black to absorb sun heat, the males on Española turn brilliant red and green to attract mates—an adaption believed to be the result of fewer prime breeding sites on the island.
(Photographed last week in the Galapagos Islands.)