There are about 1,000 different species of bats. Bats are grouped into two main groups -- Megabats and the Microbats.
The bat order is divided on anatomical grounds into two major divisions, or suborders: the Megachiroptera, or fruit bats, found only in the Old World tropics, and the Microchiroptera, or insect-eating bats, with a worldwide distribution. The fruit bats include the largest species of bat, the flying foxes, which may weigh 2 or 3 lbs (.9 to 1.4 kg). Their diet is confined almost entirely to fruit, nectar, and pollen. The insect-eating bats include the smallest bat species. Despite the name, some of these bats live wholly or largely on fruit; a large number eat insects and, in some cases, larger animals. Members of several species catch fish as they skim over water, and the South American vampire bats feed exclusively on blood.
The most common bats of the temperate Northern Hemisphere are the Old World horseshoe bats (Rhinolophus), characterized by one or two horseshoe-shaped facial appendages, the cosmopolitan little brown bats (Myotis), big brown bats, or serotines (Eptesicus), and pipistrelles (Pipistrellus). The last three, all represented by species in North America, belong to the plain-nosed bat family (Vespertilionidae), characterized by a lack of appendages on the snout.
There are over a dozen species of Myotis in North America; the common little brown bat, M. lucifugus, is distributed over the entire continent from Alaska and Labrador to the S United States. A colonial bat, it is found in many habitats, including houses. It is about 2 1/2 in. (6.3 cm) long without the tail and weighs about 1/4 oz (7 grams). The North American big brown bat, Eptesicus fuscus, of similar distribution, is about three times as heavy, with a wingspread of 12 in. (30 cm). Large, solitary North American bats of wide distribution are the hoary bat, Lasiurus cinereus, yellow-brown with silver frosting, and the red bat, L. borealis, which is a striking brick-red color. Both have soft, thick fur and roost in trees.
The freetail bats (family Molossidae) are a cosmopolitan group of communal bats characterized by a long tail extending well beyond the end of the tail membrane. Among them are the guano bats (Tadarida), which live in enormous colonies. Their excrement, called guano, accumulates in great quantities in their roosting places and is commercially valuable as fertilizer. Most New World freetail bats are tropical, but several are found in the S United States. One of these, the Mexican freetail bat (Tadarida brasiliensis), is noted for its colonies in the Carlsbad Caverns of New Mexico, numbering an estimated 250,000 to 500,000 individuals. When these bats leave the caves together it takes about 20 min for the entire column to make its exit. This family also includes the mastiff bats (Eumops), largest of the North American bats, with a wingspread of 18 in. (46 cm).
Bats fall under two main categories – Megabats (megachiroptera) and Microbats (microchiroptera). Megabats are usually large sized (though there a few of them that are smaller than the microbats) with well-developed eyes and small ears. Their eye sight is so good that they do not depend on echolocation for navigation and finding food. They feed on fruits, nectar and pollen. Microbats on the other hand are relatively smaller with small eyes and large ears. They have poor eyesight and hence have to use echolocation. These types of bats mainly feed on insects and small creatures and a few of them (Vampire Bats) love to drink blood.
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Comment by Logos Tartaros on June 14, 2012 at 5:22pm Thanks for the info. I love them. I saw my first bat in Missouri. It was around dusk and my dad was feeding them grasshoppers. He'd toss them into the air and they'd swoop in and grab them.
I've petitioned the city (Chicago) to put up bat houses on some local power line poles but they won't have it. I have tons of trees on my property but don't want to put a bat house on them...
Thanks for the insight.I found it very interesting.We have a few bats around here and I enjoy getting the chance to watch them.I find them to be amazing creatures.

They are interesting, when I went to Jamaica they have Mega bats LOL, amazing animals too
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