Bats are mammals,thus, like other mammals, they are warm-blooded, have fur, give birth to their babies alive and the mothers nurse their young. The amazing thing about the bat is their ability to echo-locate. This sonar ability is truly marvelous. Some bats congregate in caves by the thousands. Although thousands of bats can inhabit a particular cave such as Carlsbad Caverns, they are able to fly throughout that cave, in total darkness, without running into each other or banging up against a wall in the cave. What is more incredible is that each bat is able to distinguish his own signal from thousands of other bats.
Their is many species of bat in the world. All bats have the sonar ability. Two species of bat that live in western Pennsylvania is the Big Brown Bat (Eptesicus fuscus) and the Little Brown Bat (Myotis lucifugus). The world’s oldest bat fossil supposedly to be 50 million years old was discovered in Wyoming and was studied by Dr Glenn Jeppsen, a vertebrate paleontologist, is essentially identical to a modern bat. The fossil bat had the marvelous sonar ability too. He appears in the fossil record without a trace of any earlier ancestors or intermediate forms. This is a powerful testimony to the fact of creation.
Another thing amazing to the grand design of bats in creation is that they have no feathers on their wings, just like the pterosaurs, flying reptiles. Bats are good flyers. Bats are the only mammals capable of true flight. They used their flying ability along with their sonar ability to locate insects when looking for food at night. Bats are not blind. They also possess functional eyes that are used for various tasks, including long distance orientation and object identification. In fact, the visual acuity of bats is fairly good .The fact also of creation that bats reproduce after their own kind. You have never seen a bat with bird wings and feathers. Genesis 1:21 calls them winged fowl. Bats are not birds, but birds are also called fowl too. There is a list of birds in Leviticus 11:13-19 which includes the bat (Leviticus 11:19). There is no error in the Scripture because the word “fowl” means flying creature and bats fit that category with birds and flying reptiles.
God tells us to look and observe the animals for wisdom. The book of Proverbs which is full of wisdom from God gives us Scriptures for example Proverbs 30:24-28 says we can get wisdom from the small creatures that God created such as the ants, conies, locusts and spiders. I believe man developed sonar technology from studying the bat’s sonar ability. We have developed sonar for submarines and also we have developed other echo-sounding technology for locating animals.
In Job 12:7-9 the Scripture says, “But ask now the beasts, and they shall teach thee; and the fowls of the air, and they shall tell thee: Or speak to the earth, and it shall teach thee: and the fishes of the sea shall declare unto thee. Who knoweth not in all these that the hand of the LORD hath wrought this?“
For more information on bats and sonar technology go to http://www.wikipedia.com