BOB GIBBONS / SCIENCE PHOTO LIBRARY BOB GIBBONS / SCIENCE PHOTO LIBRARY
Grey whale (Eschrichtius robustus) approaching tourists in a boat. The grey whale undertakes the longest known migration of any mammal. For the winter it migrates from Arctic waters to tropical equatorial waters, a round trip of up to 20,400 kilometres. It can grow up to 1600 centimetres in length and weigh 16 tonnes. This whale feeds by swallowing sediment from the sea floor and then pressing its tongue against the plates, pushing the water out and trapping crustaceans and worms. Photographed in San Ignacio Lagoon, west coast Baja California, Mexico.
Model release not available. Property release not required.