MAMMALIA OARNIVORA DIAGRAM 3. 41 



fetch the paper for their master every day. In some cases they 

 are left to take care of the children, and we know how the 

 shepherd's dog watches the flocks. In all northern countries, 

 dogs are used to draw carriages. In Belgium and Germany four 

 and five together are harnessed to carriages somewhat heavily 

 laden, and others draw their master merrily along. Some nations 

 who live in the icy North have no other beasts of burden, and 

 fifteen or twenty are then attached to a single sledge, and thus 

 make long journeys across the snow. 



The teeth of dogs are not so well adapted for tearing flesh as 

 those of cats, the canines not being so long and pointed. The 

 molars of cats are as fitted for cutting as a pair of scissors, but 

 the last molar of dogs is flat, and formed to grind rather than 

 to cut. 



The Hycena, which lives in Africa, is considered a terrible animal, 

 but it does not deserve this reproach ; at least it is not so for- 

 midable as the wolf, and it is easily tamed. It lives principally on 

 carrion, and only attacks living animals when compelled. As the 

 dead are buried at a very slight depth in the country which it 

 inhabits, it often digs up the ground to devour them, but it 

 immediately takes to flight on the approach of a man. 



THE SEALS. These form a family which may be called amphi- 

 bious, which means animals which can live either on land or in 



Seal. 



the water. The seals are, however, easily seen to be mammals ; 

 they have fur, and four limbs armed with claws, but which they 

 only use for swimming. Seals are found on the sea shore, where 

 they are hunted for their blubber, which yields oil, and for their 



