106 FOUR-FOOTED AMERICANS 



III. Rollers . . . . . Salt-watei- Mammals, wliose fore limbs 



are hidden in skin mittens. They roll 

 through the water and are helpless on 

 land. (Whale.) 

 1\'. Hoof Wearers Swift-moving ^lammals, -with toes com- 

 pacted into small feet, called hoofs, 

 and having their horns in pairs. 

 (ii) Ronler.i. Willi two upper tusks like a Pig. (Peccary.) 

 (h) Siiliil-hortiKil (Jiiil-r/ii'iiy_-i:s. Hard, branching, bony horns 



like a Deer. (Moose.) 

 (c) nol/iiir-lmnied ('iul-che)rers. Hollow, curved horns like a 

 Cow. (Buffalo.) 



V. Gnawers The largest guild among fourfoots. 



Animals with four sharp, front-cut- 

 ting teeth. All eat vegetable food, 

 though some prefer animal. All the 

 nnisuiice animiih are Gruiirers. 

 (a) Shdilniv-lailed (Tiinirfrx. Having upright, plumy tails. 



( (iray Sijuirrel.) 

 (h) Biii'i-divhu/ (/naiL'ers. Those who make their homes under 



ground. (Woodchuck.) 

 (c) Swimminf/ Giviircrs. Those who spend part of their time 



in the water and usually live near it. (Muskrat.) 

 (fi) Liiiiif-rareil. Sliorl-lailed Gnawfra. Having Rabbit-Uke 

 ears. (Wood Hare.) 



VI. Flesh Eaters . . Mammals with four, long-pointed dog- 



like teeth for tearing meat. 



(a) ClaiD-hnndeil Flesh Eaters. Toes ending in movable claws 

 like the house oats. (Wildcat.) 



(h) l'>i)i/-iio.-i<'il Flesh Eaters. With pointed muzzles and bark- 

 ing calls. (Fox.) 



(c) The Greedij Growlers. Beasts who eat both meat, fruit, 



anil vegetables. (Bear.) 



(d) Little Fur Hearers. AVho all yield fur of more or less 



value. (Mink.) 



(e) Water People. Creat Jlammals with flipper-like limbs, 



living chiefly in the water. (Seal.) 



VII. Bug Biters Buri'owers, who kill harmful insects. 



(Moles.) 



