The Rock Pool Project in Plymouth says the non-native sea hare looks "alien-like".

As families and holidaymakers make plans to rush to beach this spring break, one traveler has issued a stark warning about a dangerous creature that may wash up along the shore. A beachgoer found an ...

Nudibranchs look like fragile, colorful decorations drifting across coral reefs — but their biology tells a different story. These sea slugs steal toxins from their prey and repurpose them as chemical ...

It wasn’t a bird, and it wasn’t a plane, but it was a blob? Or more accurately, it was a type of sea mollusk that washed ashore on South Padre Island recently, to the amazement and amusement of one ...