The nature group Rewilding Portugal recently discovered signs of Beaver presence along the Spanish border. After more than 500 years of absence, their return marks a significant moment for conservationists in the country. 

Beavers were once common in Portugal but disappeared around the 15th century due to overhunting and destruction of their river habitats. After years of growing populations across the border in Spain, the beavers have slowly made their way back all on their own.  

Gnawing marks on tree trunks and small dams in streams were telltale signs of classic beaver antics. Motion-activated cameras later captured images of a young adult beaver in Portuguese territory, confirming that they're back and building. 

These cute animals with big teeth and strong tails have impressive engineering capabilities (and are sometimes known as ecosystem engineers). In fact, one beaver colony saved the Czech government two million dollars by building several dams in just one night. Their work creates wetlands that support many other diverse wildlife, improve water quality, slow flooding and even make landscapes more fire-resistant. 

“The beaver is a natural ally in restoring the health of our rivers. This is a big step toward bringing life back to our waterways,” said Pedro Prata from Rewilding Portugal. 

“The return of the beaver to Portugal is a symbol of hope and change. It shows that if we give nature space and time, it will respond. It’s now up to us to ensure that this return is well received and protected.”  

Rewilding Portugal is now calling on local authorities to prepare for this comeback, offering help to create strategies that protect both the beavers and nearby communities. 

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