Great fruit-eating bat

The great fruit-eating bat (Artibeus lituratus) is a bat species found from Mexico to Brazil and Argentina, as well as in Antigua and Barbuda, Barbados, Grenada, Martinique, Saint Lucia, Saint Vincent and the Grenadines and Trinidad and Tobago.

Description
They weigh 10.5 g at birth and grow to 65 g as adults. The heart of A. lituratus contains unique membranous structures not seen in any other mammal. The functions of these differences are still being studied, but may possibly aid in keeping the heart in the correct position while upside down, flight assistance, and energy reservation.

Threats
Reproductive damage within A. lituratus has been linked with the insecticide deltamethrin.