THE OTTER 295 
tricks, but in growing old become unruly and often dan- 
gerous pets. 
The bears are succeeded by the Mitstelidce, or the otter, 
skunk, badger, wolverene, weasel, mink, ermine, etc., all 
of which are valuable for their furs. 
The otter [Littra Canadensis) is thoroughly amphibious 
Jt cau remaii^ under water almost as long as a loon, aiici 
