The Cuban iguana is distributed throughout the rocky southern coastal areas of mainland Cuba and its surrounding islands with a wild population booming on Isla Magueyes, Puerto Rico. It is also found on the Cayman Islands of Little Cayman and Cayman Brac, where a separate subspecies occurs. Females guard their nest sites and often nest in sites half destroyed by Cuban crocodiles. To avoid the attack from them, the Cuban iguana often makes its home within or near prickly-pear cacti（仙人掌）.

　　In general the species is in decline, more quickly on the mainland than on the outlying islands. One of the reasons for their decline is habitat destruction caused by the over consuming of farm animals, housing development, and the building of tourist resorts on the beaches where the animals prefer to build their nests. Although the wild population is in decline, the numbers of iguanas have been sharply increased as a result of captive-breeding（圈养）and other conservation programs.

　　35.The underlined word "herbivorous" （Paragraph 2） probably means

　　A. dangerous

　　B. gentle

　　C. plant-eating

　　D. flesh-eating

　　36.Why does the Cuban iguana build its nest near prickly-pear cacti?

　　A. To keep itself cool.

　　B. To get the food easily.

　　C. To stay away from people.

　　D. To avoid crocodiles' attack.

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