Meet the hydra: a tiny, unassuming organism that lives in the water with a superpower that seems to go beyond its abilities.

There are many animals that can live both on land and in water. These fascinating creatures, capable of inhabiting terrestrial and aquatic environments, represent a significant advancement in ...

Phytoplankton is an important component of the food-web and is predated by a wide variety of aquatic organisms, such as water ...

Evidence of the earliest known reptile-like animal, an ancestor of many four-limbed creatures including birds, reptiles and mammals, has been found in Victoria, Australia. The discovery could push ...

On a rainy day, you'll often see lots of earthworms on sidewalks and roads. But what makes the worms crawl away from the safety of the soil when it's raining? Some people assume worms come to the ...