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STUDIES, SCIENTIFIC AND SOCIAL 



different in external form from the jumping ground- 

 kangaroos of Australia, hop about among the larger 

 branches of trees, on the leaves of which they feed. They 

 have a bushy tail, with somewhat shorter hind legs and 

 more curved claws than their allies ; and they afford a 



Fig. 59.—CV.SCUS orientalis (male and female). 



curious example of the adaptation of an animal to new 

 conditions of life very different from those for which its 

 general form and structure seem to fit it. Such a modi- 

 fication may, perhaps, be traced to a somewhat recent 

 separation of Australia and New Guinea, when the 

 kangaroos which remained in the latter country, not find- 



