insider.si.edu: Return to the sea : the life and evolutionary times of marine mammals / Annalisa Berta ; illustrated by James L. Sumich and Carl Buell
"Return to the Sea portrays the life and evolutionary times of marine mammals--from giant whales and sea cows that originated 55 million years ago to the deep diving elephant seals and clam-eating ...
Return to the sea : the life and evolutionary times of marine mammals / Annalisa Berta ; illustrated by James L. Sumich and Carl Buell
insider.si.edu: Mammals of the sea biology and medicine Edited by Sam H. Ridgway
Mammals of the sea biology and medicine Edited by Sam H. Ridgway
The shift from lizard-like sprawl to upright walking in mammals wasn’t a smooth climb up the evolutionary ladder. Instead, it was a messy saga full of unexpected detours. Using new bone-mapping tech, ...
Roughly 250 million years ago, mammals that once roamed on land began slipping back into the sea. The descendants of those pioneering animals include today’s dolphins and orcas—highly adapted marine ...
Researchers reveal new insights into the complex evolutionary history behind the distinctive upright posture of modern placental and marsupial mammals, showing the transition was surprisingly complex ...
Pinnipeds comprise a diverse group of marine carnivores that include seals, sea lions and the walrus. Their evolutionary history is marked by a complex interplay of ecological, morphological and ...
Scientists have discovered a 246 million-year-old marine reptile fossil, the oldest of its kind to be found in the Southern Hemisphere, shining a new light on the early evolution of marine mammals.