They found that sea slugs use bold visual signals like brightly colored spots, thick stripes, or enhanced body outlines to ...

Researchers witness strange sea animals, including poisonous sea pigs and hand-sized sea spiders, while sailing to the Denman ...

The flamboyant fish that is one of the deadliest sea animals is the lionfish ...

Hordes of highly venomous sea creatures are washing up on Texas beaches, prompting warnings from authorities along the coast. The creature, called Portuguese man o’ war, resembles a jellyfish ...

Hordes of bright blue, jellyfish-like sea creatures are washing up on beaches across California. As of Monday, thousands of the critters — called velella velella or by-the-wind sailors — have been ...

A marine rescuer tells us the animals are being poisoned by a harmful algal bloom offshore from Southern California. Scientists say more frequent blooms are fueled by changing ocean conditions and ...

SeaWorld's rescue team told CBS 8 that affected sea lions in need of urgent care have been turning up in odd places.

Dog owners should make sure that their pets don’t chomp on the dried-out jellies. The poisonous sea creatures won’t permanently damage dogs who eat them, but they can cause nasty side effects ...