Evolution: The shape of cetacean skulls through deep time

Cetaceans (comprising whales, dolphins and porpoises) adapted towards a fully aquatic lifestyle. These adaptations are especially evident in their skulls. Based on a rich sample of fossil and extant cetacean skulls, a new study identifies links between shape changes and ecological specialisation through deep time. Cetaceans (comprising whales, dolphins and porpoises) adapted towards a fully aquatic lifestyle. These adaptations are especially evident in their skulls. Based on a rich sample of fossil and extant cetacean skulls, a new study identifies links between shape changes and ecological specialisation through deep time.