MIMICRY. 469 



catch Monkeys to sell them, know very well that they can easily 

 succeed in taming those which inhabit certain islands ; while 

 Monkeys of the same species, caught on the neighbouring con- 

 tinent, die of terror or rage when they find themselves in the 

 power of man. The Crocodiles of one lake in the llanos are 

 cowardly, and flee even when in the water ; whilst those of 

 another lake will attack with extreme intrepidity. It would be 

 difficult to explain this difference of disposition and habits by the 

 mere aspect of the respective localities. The Sharks of the port 

 of La Guayra seem to furnish an analogous example. They are 

 dangerous and bloodthirsty at the island opposite the coast of 

 Caracas, at the Roques, at Bonayre, and at Curassao ; while they 

 forbear to attack persons swimming in the ports of La Guayra and 

 Santa Martha."* According to Hudson, the Puma possesses " a 

 unique instinct of friendliness for man," though it violently 

 attacks other large Carnivora, and is, within the tropics, " a 

 great hunter and eater of Monkeys, which of all animals most 

 resemble men." f Another instance is the " dying-places" of the 

 Guanaco (Lama guanacus) at the southern extremity of Pata- 

 gonia, as recorded by Darwin, Fitzroy, and Hudson. That 

 young Haddock should frequent deep water, and the young Cod 

 seek the inshore water, " is one of those mysteries it is difficult 

 to unravel." t The Apron (Aspro vulgaris), a freshwater fish 

 belonging to the family Percidce, according to Prof. Seeley, " lives 

 at the bottom, and comes to the surface only in bad weather 

 with a north or west wind, when other fishes take refuge at the 

 bottom." § 



Many actions of animals of a peculiar, constant, and distinc- 

 tive character seem quite purposeless. This is particularly 

 striking in the account given of the habits of the two species of 

 African Ehinoceros {R. simus and R. bicornis). The calf of 

 R. simus " always runs in front of the cow, while the calf of 

 R. bicornis invariably follows its mother ; this habit never 

 varies." Again, R. bicornis, after dropping its dung, " proceeds 



* ' Personal Narrative,' Bohn's edit. vol. i. p. 377. 

 \ 'The Naturalist in La Plata,' pp. 48-9. 



I Cf. Mcintosh, ' Fifteenth Annual Report of the Fishery Board of 

 Scotland,' p. 207. 



§ ' The Freshwater Fishes of Europe,' p. 48. 



