While a dominant male fish from northern Mexico mates with a female, a small fella bides his time in the offing. Suddenly, the little guy darts in ahead of Mr. Big and plants his seeds on freshly laid ...

The practice of “cloacal diving” could help remoras hide from predators—it could also be a feeding strategy or help the fish ...

New marine behavior: Scientists recorded remoras entering manta rays’ cloacas, a first for these species, with seven cases documented over 15 years. Possible fish benefits: Researchers suggest the ...

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When fish from different habitats meet, it’s not always love at first swim. New research from Lund University in Sweden in collaboration with North Carolina State University shows that aggressive ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A massive species of endangered shark might be kinkier than we first ...

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University of Otago—Ōtākou Whakaihu Waka scientists have discovered that it takes mere minutes for a species of sex-changing fish to develop dominant behavior after a change in the pecking order. In a ...