Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...

Epaulette sharks reproduce effortlessly, without using much energy. The epaulette sharks, also known as “walking sharks,” do not have a rise in energy use during their reproduction cycle, according to ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An endangered species of shark has been observed having "virgin births" ...

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Life around the ocean surface can appear strangely similar from a distance. A dorsal fin cuts through the water, a dark body ...

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A Louisiana aquarium welcomed a baby shark born under mysterious conditions, the aquarium said Friday. The swell shark, nicknamed Yoko, hatched on Jan. 3, according to the Shreveport Aquarium. What ...