Animal altruism describes the fact that an individual voluntarily adopts behavior that exposes them to risks or personal costs in order to help another member...
The narwhal's tusk is a modified tooth that is highly sensitive and serves as a true sensory sensor. It is filled with nerve endings capable...
When snow passes through certain layers of very dry air, it can go directly from a solid state to a gaseous one without even bothering...
Changing color to blend into the background is far from magical; it's downright clever biology. Most animals use special cells called chromatophores, filled with small...
Dragons often represent a cataclysmic force, capable of causing enormous devastation just by sneezing a bit too hard. Breathing fire, their breath can reduce entire...
Some fish have special organs to breathe air directly out of water. For example, some use an adaptation called primitive lung, a sort of air-filled...
The wings of flies are made up of a thin membrane traversed by numerous veins, both rigid and very flexible. When the fly flies, its...
Penguins benefit from a highly practical white belly: it’s a kind of camouflage called counter-illumination. Viewed from below, the penguin's light-colored belly blends in with...
Toads have thick, granular skin covered with small bumps called poison glands. These glands secrete a toxic substance, bufotoxin, which protects them from overly curious...
Kangaroos primarily live in the vast plains and arid areas of Australia. This open, dry, and shelter-poor environment has favored their jumping ability, which is...
