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The female period of gestation is three months. Baby bats are referred to as pups. Heart-nosed bats can only have one pup at a time. Females, like all mammals, feed their young via lactation. Females will carry their newborns until two months of age. After the third month, the pup is weaned from its mother and will then follow the mother around.
A 2011 study of a population in Colorado found that their average life expectancy was a little over 6.5 years; [43] according to a 2008 report, some banded big brown bats have lived up to 20 years, although some experts have hypothesized that the bats might be "capable of living much longer." [44] In general, males live longer than females. [29]
Because evening bats do not enter or hibernate in caves, the species is not at-risk from white-nose syndrome, which has killed over six million bats in the United States since 2006. [21] The evening bat's avoidance of this disease, along with die-offs of many other species, is possibly responsible for the evening bat recently expanding its ...
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Pups are born in the summer, [12] usually sometime between May and July. [14] Unlike other bats species who usually produce one pup, eastern red bats have on average three pups at a time, and some eastern red bats have given birth to as many as five pups. [15] Females have four nipples, which allows them to nourish multiple offspring at once.
In Texas alone, the bats save cotton farmers $740,000 in potential damage in a year. Some tropical bats eat fruit and are critical for dropping seeds to restore cleared or damaged forests.
The general assembly of North Carolina considered a bill in 2007 that would have made Rafinesque's big-eared bat as its state bat. The bill passed 92-15, but died in the state senate. [3] In 2020, the big brown bat was designated the official state mammal of the District of Columbia. [4]
According to Dr. Nathan Sundgren, associate medical director of the neonatal intensive care unit (NICU) who treated the babies, the sisters are now all between 6.5 to 7 pounds, and "doing great."