A bat is a four footed beast of the ravenous sort. Each foot has five toes, and the forefeet are connected with a membrane, and expand into a sort of wing. Its mouth is like that of quadruped, not like a bird, and it is covered with hair. It gives birth to live young, not eggs, and resembles greatly a mouse. The female gives milk to its young, and these young cling to her chest. During winter bats cover themselves with their wings and hang in dry, dark places. In summer they do likewise in the day, and they hunt for food at night catching moths and insects. They cannot be tamed.

The largest bats are in Brazil, Madagascar, and Maldives, and will suck the blood of people who sleep with their skin revealed, and leave them bleeding to death.

Imagery of Bats. Bats are unclean under the law, and they represent people who are fearful, unbelieving, ignorant, and hypocritically wicked. They delight in old ruinous houses Isa 2:20.

Some take the Hebrew Hatalaph (swallow) in Lev 11:19; Deu 14:19 for a bat.

Source: [DCox]

Bat. Bats are flying mammals. They are included on the list of unclean fowl (Lev. 11:19). About 15 species of bats live in the Holy Land. Most feed on insects or fruit.

Bats hunt their food at night. An amazing built-in sonar system enables them to fly safely in total darkness. They sleep hanging upside down, often with their wings wrapped around them.

Some species gather in caves. (Isaiah 2:20) pictures discarded idols being cast “to the moles and bats,” as if to say that is where such abominations belong.

Source: [Anon-Animals]

Bat. — The bat, fourteen species of which still exist in Palestine is reckoned among unclean “winged things” (Leviticus 11:19; Deuteronomy 14:18). Its abode is generally in dark and desolate places such as ruins and caverns.

Source: [http://en.wikipedia.org/wiki/List_of_the_animals_in_the_Bible]