Eptesicus fuscus (Big Brown Bat) is a species of bats in the family Vespertilionidae. They are found in The Nearctic and The Neotropics. They are carnivores. Individuals are known to live for 19 years.
Definition: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.