We all know dogs like to smell just about everything, including other animals' poo. Now scientists have figured out how to put the canines' odd pastimes to work to help sniff out the dung of endangered rhinos in Vietnam.
The collected dung will help scientists to figure out how many Javan rhinos, also called Rhinoceros sondaicus, remain in the wild. The rhinos were considered extinct on mainland Southeast Asia until hunters in Vietnam killed one in 1988. Now two remaining populations exist, with an estimated 10 individuals in the forests of Vietnam and between 28 and 56 such rhinos on the island of Java, Indonesia.
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