There are over 60 extant species of flying fox. Horses become infected with Hendra after exposure to bodily fluid from an infected flying fox. North Sulawesi has the greatest demand for flying fox bushmeat. Nariko infiltrates the temple and is ambushed by Flying Fox. One threat to the large flying fox is habitat destruction. The frequency of flying fox consumption increases tenfold around holidays. The islands have no native mammals, except for bats such as the Mauritian flying fox. The location of flying fox camps can be a disturbance to humans. The majority of flying fox species are nocturnal and forage at night. A 1979 typhoon halved the remaining population of the Rodrigues flying fox. Several flying fox species occur in Japan. There are modern and historical references to flying fox byproducts used as currency. Believing Kai to be dead, Nariko flies into a rage and battles with Flying Fox. Little is known about mating and reproduction of the giant golden-crowned flying fox. Many flying fox species are threatened by overhunting.