What do you know about beavers?

Beavers are the second-largest rodents on the planet. They are easily recognized by their dense brown coats, flat scaly tails, and webbed back feet that make them excellent swimmers. Fully grown beavers can reach more than one metre in length from their nose to the end of their tail.

One of the most famous features of beavers is their powerful front teeth, which allow them to cut through tree trunks and branches. Their teeth contain iron-rich enamel, giving them a distinctive orange color while also making them extremely durable. These strong incisors extend beyond their lips, allowing beavers to continue chewing even while underwater. Because their teeth are constantly worn down from cutting wood, they grow continuously throughout their lives.

Why Are Beavers Important?

The United Kingdom is among the most nature-depleted countries in the world, with many ecosystems facing serious pressure and decline.

Beavers play a vital role in restoring damaged environments. Through their natural behaviors, they help revive rivers, create healthier habitats, and support biodiversity across many different ecosystems.

How Beavers Transform Their Environment

Wetlands are extremely valuable ecosystems because they act as natural carbon storage areas. Research has shown that wetlands can hold up to five times more carbon than dry landscapes. When beavers construct dams across small streams, channels, and waterways, they transform previously dry areas into wetland habitats, increasing the amount of carbon stored in the environment.

Beaver dams also slow the movement of water through river systems. By holding back water and allowing it to spread across the landscape, these structures improve the land’s ability to absorb and retain moisture. This helps reduce flooding risks in communities located downstream.

The same water-management benefits provided by beaver dams can also help during periods of drought by maintaining water supplies and keeping landscapes wetter for longer.

Beavers as Keystone Species

Beavers are considered a keystone species because their actions have a much greater influence on their surroundings than their population size alone would suggest.

By building dams, creating wetlands, and changing water flow patterns, beavers provide habitats for many plants and animals while helping maintain healthier ecosystems. Their presence can restore natural processes and improve the overall balance of the environment.