Mudskippers break the rules of fish biology by breathing through their skin, walking on their fins and thriving on land where water disappears twice a day.

The old idiom of being a fish out of water is never a positive thing. Instead, it paints a picture of being uncomfortable or awkward. This is how most fish feel when they are removed from their ...

We’ve all heard the phrase, “a fish out of water,” but these fish take it literally. As you can see in this YouTube video, splash tetras lay their eggs on a leaf overhanging the water. Only 1% of the ...