wildlife-biology

The North American beaver ( Castor canadensis ) is the largest rodent native to the United States. Adults typically weigh 24–65 lb (11–29 kg) and measure 2.5–4 ft (75–12...

Tasmanian devil glow refers to reports of bioluminescent or faint glowing phenomena observed in Tasmanian devils under specific conditions. This explainer covers the science, fi...

Record sizes, official documentation, and biological context define the largest alligator ever caught in the United States. This profile explains how such measurements are verif...

The fattest squirrel on credible record is typically a Western grey or Eastern grey squirrel during peak seasonal condition, with wild specimens reaching roughly 1.3 to 1.6 kg (...

Bison typically give birth in late spring and early summer, with most calves born in April through June in North America. Timing varies by population, climate, and local ecology...

Fat Bear Season is an annual period in late summer and fall when brown bears in places like Katmai National Park gain pronounced fat stores in preparation for hibernation. It is...

Forrest Galante, a wildlife biologist and television presenter, says he has helped locate or confirm multiple species once presumed extinct. In this evergreen explainer, we outl...

The farthest north alligator documented was found in a temperate zone near the northern edge of the species’ known range, preserved in historical records rather than a current...

‘Pink rare lions’ is used online to describe lions with unusually pale or pinkish-tinged fur. These reports typically highlight pale coats, lighter manes, or cubs that appea...

An all white moose is a moose with a predominantly white or very pale coat without being an albino. The condition is usually leucism, a genetic reduction in multiple pigments, n...