newsweek.ro/timp-liber/stiati-ca-dintii-castori-cr

Beavers have continuously growing teeth throughout their lives, with their orange incisors due to iron content that enhances durability. These rodents, known for building dams, were once extinct in Romania but were reintroduced between 1998 and 2003. Beavers play a crucial role in ecosystems by creating wetlands and improving water quality. They are territorial and maintain their fur's waterproof quality with natural oils. Their incisors are unique, with a hard enamel layer enriched with iron, allowing them to withstand wear from gnawing. Beavers can live up to 17 years in the wild and form lifelong monogamous pairs.