Bright colors in butterflies come primarily from two things: pigments and small optical tricks on their wings. Pigments are simple: they are natural chemical substances...
In jellyfish, the secret of regeneration mainly lies in their stem cells, which are capable of dividing and quickly specializing to replace missing tissues and...
Otters use stones because their teeth and claws are not always enough to open very tough shells. Some shells, like mussels and clams, have extremely...
Wolves have an ultra-developed sense of smell — far beyond ours — which is why they use urine as a sort of highly effective chemical...
Hibernation is a practical response to the harsh conditions of winter, when food becomes scarce and temperatures drop significantly. As everything slows down outside, hibernating...
Flying in formation, particularly in a V shape, helps birds take advantage of reduced air resistance. Each bird positions itself slightly behind and to the...
Crows have a particularly large brain in comparison to their general morphology. This brain-to-body size ratio is comparable to that of some primates like chimpanzees, which are...
Hummingbirds have an ultra-light body with hollow bones that facilitate fast and agile flight. Their pectoral muscles are particularly powerful, making up about 30% of...
Marmosets have very light and thin bones, suited to their small stature and allowing them to leap agilely between branches. Their tiny hands equipped with...
The pelican's buccal pouch primarily serves to catch prey, mainly fish. Like an integrated net, it inflates with water to facilitate capture. Then, it allows...
