Sylvain Cordier / Lava cactus (Brachycereus nesioticus), Bartolome Island, Galapagos Islands.

Ross Hoddinott / Lava lizard (Tropidurus spp.) eating painted locust, Bartolome Island, Galapagos, Ecuador. May 2015

Ross Hoddinott / Lava lizard (Tropidurus) on sand, Bartolome Island, Galapagos, Ecuador. April.

Ross Hoddinott / Lava lizard (Tropidurus) on sand, Bartolome Island, Galapagos, Ecuador. April.

Tui De Roy / Pinnacle Rock, remnant of old eroded tuff cone, Bartolome Island. Galapagos Islands, June 2011.

Tui De Roy / Pinnacle Rock, iconic Galapagos Landmark formed of eroded tuff stone, Bartolome Island, Galapagos, Ecuador. June 2011.

Pete Oxford / Galapagos penguin (Spheniscus mendiculus) diving underwater, Bartolome Island, Galapagos, endemic

Pete Oxford / Galapagos Penguin (Spheniscus mendiculus) coming up to surface, Bartolome Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Penguin (Spheniscus mendiculus) diving, Bartolome Island, Galapagos Islands, Ecuador

Pete Oxford / Galapagos Penguin (Spheniscus mendiculus) swimming, Bartolome Island, Galapagos Islands, Ecuador

Murray Cooper / Volcanic formations, Bartolome Island, Galapagos Islands, Ecuador

Juan Carlos Munoz / Tourists walking along walkway on Bartolome Island, Galapagos, January 2009