Six million years ago, massive otters roamed the Earth armed with powerful jaws and very big skulls.
Dogs can rapidly mimic each other's expressions, just like humans and some primates.
Ancient birds had an intricate arrangement of muscles and ligaments that controlled the main feathers of their wings. This suggests that some were able to fly as well as modern birds.
Wild and domesticated horses began evolving differently from one another some 45,000 years ago, but a recent study has revealed their genetics ties and is providing a greater understanding of both past and present populations.
A new species of marine roly poly pillbug - actually, make that two new species - were recently discovered in Los Angles, a new study describes.
A rare, flawless, and blue-colored diamond went on display at LA's Natural History Museum on Friday, adding significant value and vibrant sparkle to its already existing gem collection.