Introduction The hands of a monkey are usually imagined as grasping tools: flexible fingers tipped with flat nails, wrapping around branches much as a human hand might. Pygmy marmosets complicate …
Inside a humid tropical cave, the ceiling can be as biologically active as the floor. Bats cluster against limestone surfaces, arthropods move through cracks and crevices, and predators exploit opportunities …
An echidna moving across an Australian forest floor can look almost methodical. Its head stays low as it noses through leaf litter, investigates rotting wood and presses its long, narrow …
A small tropical lizard dives beneath the surface of a stream. Instead of immediately swimming back toward air, it settles underwater. Then something unusual appears around its snout: a silvery …
Table of Contents When Do Hummingbirds Migrate South? A Backyard Timing Guide If you’ve noticed your hummingbird visitors becoming more active at the feeder or chasing each other more often, …
A kangaroo rat emerges from its burrow after sunset. The desert surface that was dangerously hot only hours earlier is beginning to cool. The small rodent pauses, listens, and then …
A spotted hyena approaches the remains of an ungulate carcass. Much of the obvious meat may already be gone, but the carcass is far from nutritionally irrelevant. Skin, connective tissue, …
A polar bear moving across Arctic sea ice can appear to be searching an empty landscape. The surface may stretch for miles with little more than snow, pressure ridges, cracks, …
A wolverine crossing a snow-covered mountain can look remarkably well suited to the landscape. Its broad feet spread with each step, its compact body stays low to the ground, and …
One of the most recognizable features of the snow leopard is its remarkably long, thick, and fluffy tail. At first glance, it may appear oversized compared to the rest of …