LifeMice on opposite North American coasts evolved the same way In North America, mice in both New York and Alberta are larger than their southern cousins and make large nests that insulate against colder northern winters News
LifeBizarre 'manta shark' slowly cruised the oceans 93 million years ago A Mexican fossil belongs to a shark that lived more than 90 million years ago and had wings like a manta ray, which may have helped it swim in place while feeding on plankton News