Beavers (genus Castor) are large semiaquatic rodents of the Northern Hemisphere. There are two existing species: the North American beaver (Castor canadensis) and the Eurasian beaver (C. fiber).

Jan 6, 2026 · beaver, (genus Castor), either of two species of amphibious rodents native to North America, Europe, and Asia. Beavers are the largest rodents in North America and Eurasia and the …

Beavers' incisors appear dark orange due to the high amount of iron contained in the enamel, which is the hard outer layer of the teeth. The iron strengthens the enamel, helping prevent the teeth from …

Beavers are the second-largest living rodents after the capybaras. Beavers can grow up to 120cm in length (1.2m), their tail can measure as long as 50cm and they can weigh nearly 30kg – which …

Beavers, often hailed as nature’s engineers, are far more than just bucktoothed rodents. These industrious creatures play a critical role in shaping landscapes and maintaining healthy ecosystems. …

North American (Canadian) beavers are widespread across the continental United States, Canada, southern Alaska, and some parts of northern Mexico.

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Jan 12, 2026 · Beavers are semi-aquatic mammals, widely renowned for their remarkable abilities in building dams and lodges made of branches, twigs, tree limbs, and other natural resources. They are …

Beavers are ecosystem engineers that build dams, boost biodiversity, and help fight climate change. Learn how conservation is helping them thrive.

Beavers are fascinating semi-aquatic mammals known for their incredible ability to transform landscapes. With their distinctive skills in dam-building and lodge construction, these rodents play a …