Are any plants and animals evolving backwards by incorporating traits that they lost long ago? Joseph R., New Bedford, MA.

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 ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Evolution is often portrayed as stepping toward ...

Some tomatoes have evolved to possess the characteristics of their ancestors. While it is rare, there have been instances of species displaying traits from further back in evolution. But for the first ...

Imagine a photograph of your great-grandparents, grandparents and parents side by side. You’d see a resemblance, but each generation would look distinct from its predecessors. This is the process of ...

Humans have been evolving for the past six million years. But something's gone terribly wrong. And now we are evolving backward. Once this process began, how long would it take for you to become an ...

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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 ...