IN THE AIR

 Hello ladies and gents this is the Viking telling you that today we are talking about

WHITE-WINGED VAMPIRE BAT

The white-winged vampire bat (Diaemus youngi), a species of vampire bat, is the only member of the genus Diaemus. They are found from Mexico to northern Argentina and are present on the islands of Trinidad and Margarita.

Etymology and taxonomy

The white-winged vampire bat was described by Dutch zoologist Fredericus Anna Jentink in 1893. Dr. Charles Grove Young (1849-1934) is the eponym for the species name youngi. Jentink decided to honor Young with the species name because "our Museum is indebted [to him] for so many additions to its collections of the British Guyana animals." When it was described by Jentink in 1893, it was initially placed in the same genus as the common vampire bat, Desmodus. However, in 1907, Gerrit S. Miller placed it in a new genus, Diaemus. That move to a new genus was not immediately accepted, however, with authors continuing to place it in Desmodus until at least 1982.

Description

Their fur is clay-colored, light brown, or dark cinnamon brown. The outline of their wings is white, as well as the membrane between their second and third finger. Their ears are longer than they are wide, at 18 mm (0.71 in) long. The anterior surface of the tragus is hairy, and its outer margin is smooth, unlike that of the common vampire bat, which is serrated. Their thumb is much shorter than that of the common vampire bat. Their forearms are 51–54 mm (2.0–2.1 in) long. 

Their dental formula is , for a total of 22 teeth; the other two species of vampire bats have 20 teeth. It is the only bat species in the world with 22 teeth. The last upper molars are vestigial, though, and older individuals sometimes lose them. The uropatagium and forearms are sparsely furred. From nose to tail, they are approximately 84 mm (3.3 in) long.  

They weigh 31.7–48.1 g (1.12–1.70 oz). Both males and females have cup-shaped scent glands located in their mouths. These glands might be an anti-predator defense, as the bats produce a foul-smelling odor from these glands when they are disturbed. 

Compared to other bats, their brains are especially large in relation to their body sizes—2.7-2.9% by body mass. This may be because their foraging strategy requires more complex thought (such as maintaining stealth) than other species. Their eyes are also relatively large in relation to their body sizes

and as always have a chilled day from the Viking