A tall, red-coated canid moves through a South American grassland on impossibly long-looking black legs. At one moment it may be listening for a rodent hidden in the vegetation. Later, …
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 …
Across an open Arctic landscape, a group of musk oxen notices wolves approaching in the distance. The herd becomes more compact. Large adults turn toward the threat, while younger and …
A black-tailed prairie dog stands upright beside its burrow, watching movement across the grassland. A potential predator is approaching. Seconds later, a sharp vocalization carries through the colony, and nearby …
A fish resting on an exposed mudflat seems to be in the wrong place. Then it pushes itself forward on its fins, skips across the mud, raises a colorful dorsal …
On the forest floor in eastern Australia, a male satin bowerbird may spend hours maintaining a structure made from carefully positioned sticks. Around it, he places selected objects—blue feathers, flowers, …
High above a rocky mountain slope, a bearded vulture circles with something unusual clutched beneath it: a large bone. The bird releases its cargo, the bone crashes against exposed rock, …
Summer on the Arctic tundra can bring a dramatic burst of biological activity. Migratory birds arrive to breed, eggs fill nests, insects emerge, and in some regions populations of lemmings …
A group of dark birds circling over a field can create an unsettling impression, especially when a dead deer is later discovered nearby. It is easy to connect the two …