Meet animals that grow for a lifetime, sometimes for centuries, and discover why dinosaurs did not, despite their huge size.

Animals that can change their sex naturally might sound surprising at first, but in nature, it is simply another survival ...

Many animals that live in water need to come up to the surface to breathe, but they can still spend impressive lengths of time submerged thanks to a few clever tricks. When you purchase through links ...

The peppered moth is an iconic example of Charles Darwin’s theory of evolution by natural selection. For centuries peppered moths (Biston betularia) were common in the forests around Manchester, ...

While speed often captures attention, many animals thrive by moving slowly, conserving energy and avoiding predators. From the banana slug to the dwarf seahorse, these creatures demonstrate that a ...