WHALES ARE MAMMALIA. 105 
fly the danger, takes it with her to the bot- 
tom, but rises sooner than usual, to give it 
breath again. 
** While listening, however, to these and 
endless similar details, we are never to forget, 
that we are speaking of Mammalia, though 
inhabitants of the ocean; that Whales have 
warm blood, and suckle their young, and 
have the same animal nature with the Ele- 
phant, the Ox, the Dog, and the Cat, in all of 
which similar examples of tenderness are so 
familiar as to excite no surprise; and that, in 
the several kinds of Whales, we have to do 
with a different class of animals than that of 
those cold-blooded and oviparous ones which 
are Fishes of the ordinary kind. 
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