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 ...

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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 ...

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 ...

Russell has a PhD in the history of medicine, violence, and colonialism. His research has explored topics including ethics, science governance, and medical involvement in violent contexts. Russell has ...

The Nature Index 2024 Research Leaders — previously known as Annual Tables — reveal the leading institutions and countries/territories in the natural and health sciences, according to their output in ...

(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 ...