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 ...

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 ...

We typically think of evolution as progressing in one direction, with a species getting “better” and “better” as it goes. But evolution is far more complex than that, as has recently been illustrated ...

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 ...

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 ...

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, ...