The life of a 166-million-year-old reptile has been turned upside down. While Marmoretta oxoniensis was believed to have swum ...

Scientists report adaptive divergence in cryptic color pattern is underlain by two distinct, complex chromosomal rearrangements, where millions of bases of DNA were flipped backwards and moved from ...

Bird beaks come in almost every shape and size—from the straw-like beak of a hummingbird to the slicing, knife-like beak of ...

the billions of years that have passed since the fusion of an Archaea and a Bacteria have resulted in a lack of evolutionary intermediates in the phylogenetic tree until the emergence of the ...

Environmental Variability Promotes the Evolution of Cooperation Among Humans: A Simulation-Based Analysis Apr. 18, 2025 — Researchers have demonstrated that intensified environmental variability ...

Could aquatic mammals, such as whales, orcas, and bottlenose dolphins, ever evolve to live on land again? It seems the chances of this are actually vanishingly small, as the adaptations that allow ...

By combining these measurements with evolutionary trees, we tested whether plankton-feeding fishes were distinct in shape to their counterparts. Blotcheye soldierfish (Myripristis berndti). Image ...

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It was a phylogeny of butterflies—an evolutionary family tree—and it contained many blank spaces. “I was so surprised that scientists didn’t know everything about this, and it became my ...