Evolution has produced stunningly complex features, from neuron-studded octopus arms to the mammalian ear. Can evolution ever go "backward," though, reverting complex creatures to previous, simpler ...

Add Yahoo as a preferred source to see more of our stories on Google. Unfurling fiddlehead of the Christmas fern (_Polystichum acrostichoides_). Jacob S. Suissa, CC BY-ND Imagine a photograph of your ...

For years, the Ulas family in Turkey has received a lot of attention from the scientific community. Because five members of the family walk on all fours, one scientist concluded over a decade ago that ...

Maddy has a degree in biochemistry from the University of York and specializes in reporting on health, medicine, and genetics. Maddy has a degree in biochemistry from the University of York and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Jacob S. Suissa, University of Tennessee (THE CONVERSATION) Imagine a photograph of ...

A scientific debate about a family in Turkey has continued for years, all because multiple members of the family walk on all fours. One scientist infamously dubbed the condition backwards evolution, ...