Add Yahoo as a preferred source to see more of our stories on Google. Parasites do very well for themselves, which is why they are so common in the animal kingdom. Geoffrey Read, CC BY If you're an ...

Hermit crabs move into other animals’ discarded shells as shelter, because the ocean is a treacherous place, full of hungry predators. Half a billion years ago, another creature evolved the same ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Penis ...

For a long time, scientists believed that parasitic relationships between marine species developed much later in Earth’s history. But new fossil evidence from Morocco suggests otherwise. A recent ...

In October 2014, the suspicion arose that the parasite worm Polydora websteri had found its way to the Wadden Sea. Following years of research, that suspicion has now been confirmed: the worm, that ...

A dozen twists of a knife were all it took to tarnish the unblemished reputation of Washington’s oysters. It was 2017, and Teri King, an aquaculture specialist for Washington Sea Grant, a marine ...

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A dozen twists of a knife were all it took to tarnish the unblemished reputation of Washington’s oysters. It was 2017, and Teri King, an aquaculture specialist for Washington Sea Grant, a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. In the depths of ...

If you’re an oyster lover, seeing a shaggy worm slither across your appetizer is revolting – even though such worms are harmless to people. An internet search using the keywords “oyster” and “worm” ...

If you're an oyster lover, seeing a shaggy worm slither across your appetizer is revolting—even though such worms are harmless to people. An internet search using the keywords "oyster" and "worm" will ...