Scientists confirm that orcas and dolphins have lost the ability to return to dry land due to irreversible evolutionary ...

This discovery has big implications for how we understand evolution and marine biodiversity. Cetaceans like dolphins and orcas are now essentially “trapped” in their watery ways due to their ...

Examples of convergent evolution include the similarly streamlined teardrop body shape that evolved in ichthyosaurs, sharks, tuna and dolphins — a response driven by natural selection in similar ...

Based on the protruding part of the upper jaw bones, museum officials determined the item brought in by Saka was a dolphin’s head ... who is well-versed in the evolution of whales, telling ...