Bats are typically categorized into two main groups; megachiroptera (Old World Bats) and microchiroptera (Old and New World). The silver-haired bat, scientifically known as the Lasionycteris noctivagons, is a member of the microchiroptera group. Further classification places the silver-haired bat into the animalia kingdom (animals), the phylum chordate (vertebrates), the mammalian class (mammals), the order chiroptera (bats), and the Vespertilionidae family (vespertilionid bats) (Silver).
The silver-haired bat is a small bat that is recognized by the unique ≥silvery≤ highlights that are found in the hair on the bats back. Despite there being over 900 different species of bats within the
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One unique characteristic that bats have versus other members of the mammalian class is their method of reproduction. Bats mate using a very unique process referred to as delayed fertilization. Through this process, mating typically occurs from late August through October during the time of swarming at cave entrances (As most bats begin to hibernate for the winter months). The spermatozoa are then stored inside of the females reproductive tracts during the winter and ovulation does not occur until the spring following the bats return from a state of hibernation (Vespert). The silver-haired bat appears to follow this same pattern with peak sperm formation in late August and ovulation typically occurring in late April to early May. Silver-Haired bats, like other bats, typically produce one to two offspring with each reproductive effort and new-born bats are typically able to fly after three to four weeks and reach their full sexual maturity after their first summer (Nowak). The average life-span of the silver-haired bat has been found to be relatively low (Under 12 years) when compared to other temperate zone vespertilionids which have been known to live up to 20-30 years (Schmidt).
Another unique characteristic of the silver-haired bat are its roosting habits which also act as a limiting