Is an organism a sum of its parts, or should they be considered as a whole? New research on ferns shows how the way scientists understand evolution affects how they study life.

I found this mysterious stem floating along a stream and decided to see if I could grow it. It was then planted in mud and ...

Pack your bags, because we are going back to Panem for Hunger Games: Sunrise on the Reaping, and we already have our new Haymitch Abernathy, Effie Trinket, President Snow, Lenore Dove Baird, Plutarch ...