Animals & Nature

Chameleons can direct their eyes toward different parts of the surroundings, but the eyes are not simply two unrelated cameras operating without coordination. Their…

Birds preen to maintain the structure and condition of their feathers. Using the bill, they realign parts of the feather, remove debris and work…

Dragonfly nymphs are aquatic predators. They eat animals they can capture and handle, commonly other insect larvae and small aquatic invertebrates; larger nymphs may…

Frogs call to communicate, most famously when males advertise to potential mates during breeding. They produce sound using the larynx, and many species use…

The horn-like knobs on a giraffe’s head are called ossicones. They are bony structures covered with skin, and both male and female giraffes have…

Many bats hang upside down because their feet and tendons make hanging economical, and an elevated roost provides a convenient starting position for flight.…

A squirrel’s tail can serve as a signal, help control the body during movement and contribute to shelter or insulation. A flicking tail often…

Beaver incisors remain effective cutting tools because they grow continuously and wear unevenly. The hard enamel on the front and the softer tooth material…

Sea turtles breathe air with lungs, so they must return to the surface. They remain underwater by holding their breath and managing oxygen use,…

Jellyfish sting using microscopic capsules housed inside specialized cells. A capsule can discharge a tightly packed thread with extraordinary speed, helping the animal capture…