Fishing duo Cole & Jay watch a determined angler defy a local parasite warning to successfully land a massive four-pounder.

Parasites are disturbing by design, but this one goes further. It doesn’t just infect a host — it alters behavior, reshapes biology, and ensures its own survival at the expense of another living ...

Cleaner wrasse have revealed a remarkable new side of fish intelligence. Marked with fake parasites, they used mirrors to ...

A brain parasite already living inside one-third of humanity is now the subject of alarming new research, and disclosure advocates say the classified files Trump just ordered to be released may hold ...

A barnacle evolved into a parasite and drills into sharks in the deep waters of Norway to feed and survive in silence.