Extant anaerobic eukaryotes are morphologically, physiologically and phylogenetically diverse. This is in part because of their multiple independent evolutionary origins. Some are facultatively ...

Cells manage a wide range of functions in their tiny package — growing, moving, housekeeping, and so on — and most of those functions require energy. But how do cells get this energy in the first ...

JONNY NELSON: Energy. There are lots of different types and lots of different ways of storing it. Chemical energy in a sparkler, elastic potential energy that fires a toy into the air, and many, many ...