442 



METAZOAN PHYLA 



Fig. 340. — African tiepiiants, Loxoduula afncaniL, have heads which slope back more 

 and have much larger ears than the Asiatic species. They are also more savage and difl&- 

 cult to domesticate. Elephants possess very little hair and have the nose and upper lip 

 prolonged into a proboscis. The upper incisors are developed into long tuska. (Photo- 

 graphed from grouped specimens in the University of Nebraska State Museum.) 



"* ;"sr*«'^ 



■^SKfS 



Fig. oH. Thf two-horned rhinoceros, Rhinoceros bicornis. A three-weeks-old young 

 one and an adult male accompanied by a small flock of rhinoceros birds, Buphaga africana. 

 These birds eat the external parasites on the skin of the rhinoceros and warn their host of 

 approaching hunters by uttering a loud harsh note. {Photographed from specimens in the 

 University of Nebraska State Museum.) 



