The countdown to polar night begins slowly. Twelve hours of sunlight a day become 10, then eight. The sunrise slowly creeps later into the morning and sets a little earlier each evening. Minute by ...

This article was originally featured on The Conversation. Life and death are traditionally viewed as opposites. But the emergence of new multicellular life-forms from the cells of a dead organism ...

A new study tackles one of the oldest questions in the history of the planet: How did living organisms get so big? A new study from CU Boulder finds that hundreds of millions of years ago, small ...

Banner image: Carl Simpson inspects a fossil of Brooksella alternata, an invertebrate animal that swam in the ocean roughly 500 million years ago. (Credit: Glenn Asakawa/CU Boulder) A new study from ...