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

As life on earth evolved, billions of creatures made the move from primordial ooze to life on land. For most, that eons-long transformation was a one-way trip. With the exception of amphibians—which ...

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 ...

When we think of fish, we imagine creatures that live deep inside the water, swimming with gills and fins in oceans, rivers, or lakes. But nature is often full of surprises, and among these are some ...

The northern snakehead, a long, sharp-toothed fish with an eel-like body, is quickly spreading through rivers and lakes in the United States. Native to Asia, this predatory fish poses a serious risk ...

Some of the earliest fin-steps of fish on land, a human embryo finds its home in the uterus and the green goo that might one day replace some of the meat on our plates. Some of the earliest fin-steps ...

Rachael has a degree in Zoology from the University of Southampton, and specializes in animal behavior, evolution, palaeontology, and the environment.View full profile Rachael has a degree in Zoology ...

Study suggests adapting to life on land wasn't the biggest challenge facing fish coming ashore millions of years ago.