Thousands of species have evolved this amazing capability. Some are genetically programmed to experience a mid-life switch, ...

Nature has a fascinating way of creating creatures that appear strikingly similar yet are distinctly different. It's eas ...

But there's no one shape or size when it comes to a penis ... the chances of getting a disease, because most animals haven't separated out their digestive outlets from their sexual inlets.

Bryan Nelson is a science writer and award-winning documentary filmmaker with over a decade of experience covering technology, astronomy, medicine, animals, and more. Sea turtles are charismatic ...

Like mammals, birds come in all sizes and shapes ... Keep an eye out for these amphibians near rivers or wet places across Northern Ireland! Fish are animals that live in water and breathe ...

Nocturnal animals tend to have proportionally bigger ... (Both are named after their relative shapes.) Cones work in bright light and register detail, while rods work in low light, detecting ...

Of course humans don’t really change into animals and plants ... had grasped the essential point which is that despite all the shape-shifting the new creature is in essence still the same ...

It literally had an arrow sticking out of his head ... You're trying to save animals that are already in really bad shape and sometimes they don't make it and just breaks your heart," he says.

These shapes ensure they can heat up and cool down rapidly ... Also, a great deal of water is lost through breathing out, so desert animals expel dry air, reabsorbing the water in their breath before ...

Find out how they lived, when they vanished, and how much we know about them today. Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as ...

Cell membranes from comb jellies reveal a new kind of adaptation to the deep sea: curvy lipids that conform to an ideal shape ...

Typically, to figure out the function ... to predict the shapes of 67,715 proteins from nearly 4,500 species of viruses that infect eukaryotes (organisms including plants, animals, and humans ...