Seals have special nostrils that close automatically when they dive, creating a perfect seal that prevents water from entering. To sleep better underwater without having...
Seals have a unique anatomy with specially designed nostrils that can completely close when they dive underwater. The trick? Powerful muscles control the opening and...
In ants (and other social insects like bees), sex is determined by a particular genetic system called haplodiploidy. This simply means that females have two...
Foxes mainly make nocturnal cries to communicate with each other. These cries often express a need to mark their territory, which helps avoid unnecessary battles...
Bats have special tendons at their claws called locking tendons. When they hang upside down, these tendons allow them to automatically lock their position with...
Dolphins have an impressive brain relative to their size, with a complexity similar to that of humans. This brain features a highly folded cerebral cortex, known as...
The legs of ducks get their bright orange color from pigments called carotenoids. These molecules come directly from their diet, which mainly consists of aquatic...
Magpies are often attracted to shiny objects mainly out of natural curiosity. They are very intelligent birds, always on the lookout for novelty and visual...
Wolves have an ultra-developed sense of smell — far beyond ours — which is why they use urine as a sort of highly effective chemical...
Rabbits have a digestive system designed to operate continuously, much like a small factory that runs 24/7. They need to eat almost constantly to prevent...
