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Animal Attraction



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Froggy-back Ride
Photograph by John Cancalosi

"Nuptial pads" on his forearms give this male tree frog a grip on his much larger mate. These Hyla geographica—a Peruvian tropical forest species—assume the position known as amplexus, typical among frogs. They do not copulate in the strictest sense; instead, males deposit their sperm on top of the females' eggs after they've been laid.





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