I'm in the USA and the only time I've seen beavers in the wild is when they are swimming and I'm in a canoe. They must be better at hiding from humans when the

I'm in the USA and the only time I've seen beavers in the wild is when they are swimming and I'm in a canoe. They must be better at hiding from humans when they are on land. In the water they're easy to spot because of the ripples behind them, and because they often slap the water with their tail to warn others of danger (my canoe, apparently).