However, it is still unclear how intelligent these birds are, how fast they grow, and without a stable base, Chen Zhou cannot put his ideas into practice.
...
Looking out over the open river, one can occasionally see tangled branches and clumps of mud and grass slightly protruding from the water surface.
Initially, Chen Zhou thought they were mud deposits or naturally accumulated stone bars made of river stones and sand, but later he discovered they were beaver dams built by giant beavers.
These beavers are much larger than modern beavers, each one measuring nearly 2 meters in length.
They move in groups along the water's edge, equipped with a pair of massive chisel-like incisors.
Although these dam-building "architects" have only recently arrived here, they have already caused significant damage to the riverside trees.
