A simple change in species composition can impact the course of evolution: A research team from the University of Bern and the University of British Columbia in Canada shows that the presence of just ...

Fish stranded on shore often look helpless, all flops and wriggles. But that clumsy scramble may follow a surprisingly ...

A tiny river fish, the Amazon molly, has survived 100,000 years without males, revealing alternative ways life maintains ...

Learn more about Qreiya 3 Lagerstätte, a fossil-rich site that could help fill key gaps in marine evolution.

All-female species have been long thought of as evolutionary dead ends – but one fish has defied the odds to live without ...

Animals Fish The Mariana Trench is home to some weird deep sea fish, and they all have the same, unique mutations Deep-sea fish adapt to some of the most extreme conditions on Earth. New research ...

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...

The team designed a robot to test their results and found that the most efficient movement closely matched those of fish that ...

The cichlid fish of Africa's Great Lakes have formed new species more rapidly than any other group of vertebrates. A new study shows that the ease with which these fish can develop a biological ...

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Scientists have peered inside the skull of a 380-million-year-old Antarctic fish that was closely related to the first animals to walk on land, revealing surprising clues about how life began its move ...

The deep ocean remains largely unexplored, despite containing a large portion of the living organisms and animals on Earth. Among the many creatures populating the deep-sea are so-called Cyclothone, ...