MORPHOLOGICAL EVIDENCES 



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, 

 limb 



mammals. Dinosaur eggs and dinosaur bones are there in abun- 

 dance. The largest mammal ever found has just been un- 

 earthed. Many of these fossils are on exhibition in the American 

 Museum of Natural History in New York. 



Morphological evidences. There is great similarity in the 

 structure of animals, particularly the vertebrates. It is thought 

 that the bones which form the shoulder and hip girdle of man 

 are analogous to the bones which support the front and rear fins 

 of the fish. The bones of the arm and leg are variations of the 

 bones in the fin. Between 

 the bones of the higher apes 

 and man there seems to be a 

 difference in proportion only. 

 There is also a muscle for 

 muscle correspondence. 



Vestigial evidence. There 

 are traces or rudiments of 

 organs found in certain 

 higher animals. These ves- 

 tiges are no longer used. 

 Probably the animal passed 

 through a stage when it used 

 such an organ. The horses 

 of to-day have splints or use- 

 less bones high upon either 

 side of their hoofs. These Wlvie 



are vestiges of toes. This is 

 one of the evidences that 

 the present one-toed horse 

 developed or evolved from 

 the ancient four-toed horse. 

 Human beings have a great many vestiges. The appendix is 

 large and performs an important digestive function in some ani- 



A striking evidence of descent is the rudimen- 

 tary organs in higher animals. The snake shows a 

 rudimentary pelvis and hind limbs. The nictitating 

 membrane is still found among birds and reptiles. 

 The P r P ise shows vestigial pelvic bones. There 

 are numer ous other rudimentary organs in various 



animals - 



