When sonar first picked up a massive, stair‑like object on the floor of the Baltic Sea, the image looked less like geology and more like a movie prop. The structure’s circular outline, sharp edges and ...

Add Yahoo as a preferred source to see more of our stories on Google. The Rock Pool Project in Plymouth described the non-native species of sea slug as "alien-like" [Kwan Yu Goh] Non-native and rare ...

Non-native and rare species of sea slugs described as looking like aliens have been found by a group studying rock pools. The depilatory sea hare (Aplysia depilans), usually found in the eastern ...