The fact that the sharks were resorting to using the manta rays to remove parasites possibly indicates that they are responding to a lack of “cleaner fish,” such as Clarion angelfish, which ...

For years, scientists have been unsure exactly how this shark—with its cloudy and parasite-ridden eyes—manages to live so long. However, ...

It is bad enough to have parasites in your eyes, but now Greenland sharks have to deal with barnacles in their butts. Newsletters Games Share a News Tip Featured ...

Many sharks and rays are known to breach, leaping fully or partly out of the water. In a recent study, colleagues and I reviewed research on breaching and ranked the most commonly hypothesized ...

Many sharks and rays are known to breach, leaping fully or partly out of the water. ... Basking sharks are known to host parasites, including common remoras and sea lampreys.

The anatomy of this 99-million-year-old flatworm encased in amber is strikingly similar to modern flatworms found in shark intestines, researchers say. How the purported marine parasite ended up ...

“These are parasites, genomic parasites,” said Mr. Hoffmann. “They have a pretty bad reputation.” The findings led the researchers to wonder how sharks could live so long if they carried ...

Mysteries surround the elusive Greenland shark, the longest-living vertebrate in the world. Researchers have new insight into the unique fish’s genetic makeup.