"Zebrahub" is an atlas of cells in developing zebrafish embryos, and scientists say it will help us learn about our own ...
The animal lived about 70 million to 75 million years ago in a part of the state that would likely have been a swampy ...
The new mammal lived in Colorado 70 to 75 million years ago -- a time when a vast inland sea covered large portions of the state, and animals like sharks, turtles and giant crocodiles abounded.