Wingless fly uses bat as taxi

The New Zealand Bat-Fly is a wingless insect that only lives in hollow trees alongside Short-tailed Bats at the Northern tip of New Zealand’s North Island. It feeds on bat droppings so it never worries about where its next meal is coming from. But when the bat-fly colony gets too big, some of the adults will climb onto a bat and grip tightly in the hope that they will be carried to a less crowded roost. Read more about this species in Extraordinary Animals.