The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 287
... crocodile ( Crocodylus acutus ) , and the Chinese alligator ( Alligator sinensis ) are the only species found outside the tropics . The true crocodiles ( family Crocodylidae ) occur in most of Africa south of the Sahara , Madagascar ...
... crocodile ( Crocodylus acutus ) , and the Chinese alligator ( Alligator sinensis ) are the only species found outside the tropics . The true crocodiles ( family Crocodylidae ) occur in most of Africa south of the Sahara , Madagascar ...
Page 288
... crocodiles lay hard - shelled eggs , which may num- ber more than 100 , depending upon the age and size of the female . The female builds a nest as a shelter for the eggs . The Nile crocodile female digs a trench , which it refills with ...
... crocodiles lay hard - shelled eggs , which may num- ber more than 100 , depending upon the age and size of the female . The female builds a nest as a shelter for the eggs . The Nile crocodile female digs a trench , which it refills with ...
Page 289
... crocodiles also belong - the choanae had already moved to the posterior part of two bones of the skull ( pterygoids ) . In the true crocodiles ( Eusuchia ) , which ap- pear in the Upper Jurassic , the choanae are entirely en- closed by ...
... crocodiles also belong - the choanae had already moved to the posterior part of two bones of the skull ( pterygoids ) . In the true crocodiles ( Eusuchia ) , which ap- pear in the Upper Jurassic , the choanae are entirely en- closed by ...
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