1939
A beaver is on the nickel because it is a Canadian symbol, and it was important to the early economy.
1938
that is not clear
because it is a Canadian symdol
The first Jefferson nickels were released in 1938.
On the US 5 cent piece, Thomas Jefferson's home, Monticello is pictured. I think the Canadian 5 cent piece has a beaver on the reverse.
It was on the Shield Nickel minted from 1866 to 1883.
Barely legal beaver.
The current brass $1 coin has a picture of a loon, an aquatic bird common in Canada.Older $1 silver coins carry a picture of a voyageur (fur trapper) rowing a canoe. That animal, of course, is a human male.
Leave It to Beaver - 1957 Beaver's First Date 5-13 was released on: USA: 30 December 1961
To the left of copper appear nickel.
A beaver's tail is the same color as the rest of his coat. It is generally a brown of some shade. There are times when a beaver's tail can appear to be darker, but that's because it is usually wet.