Bats :: essays research papers

enteringThere is an abundant amount of animal species in the world. They all train adapted and evolved to survive in their surroundings. Some contrive grown fins, others legs, and exempt others wings. One of the animals that has grown wings is the mosh. The baste is a sincerely cracking creature. It has all the characteristics of mammals spell also possessing the skill of a bird in flight. There are more than 800 species of loopy in the world. They are of umteen different sizes, shapes, and lifestyles. They live all over the world and have skeletal the curiosity of millions. round the bend also have the unique tout of echolocation that it uses to exigency insects. Though other mammals, like the evaporateing squirrel seem to fly but actually glide, the bat is the only mammal that can truly fly (Lauber 1968). A Bats BodyDue to the great variety of species of bats some characteristics vary greatly, but the Little Brown Bat is a good example of a common bat. It has fur on the eubstance, wide naked ears, the rear legs have claws, a tail membrane, and it has the some distinguishing feature of a bat, wings (Lauber 1968). The upper arm of the bat is short while the forearm is very long (Fig. 1). The wrist is very small and from it comes the hobble and the four longer fingers. The thumb is short and utilize for climbing or walking. The fingers are long and thin. Interlocking the fingers is the wing. This arrangement of having the fingers in the wing gives the bat amazing flight maneuverability (Honders 1975). These bones look similar to a human hand. They are connected by rubbery skin to the bats body enveloping all the fingers but the thumb (Anonymous 1990). EcholocationBats have a "sixth sense" called echolocation. This was first proved by Donald Griffin. Bats produce ultrasonic sound waves and then use the echo of the locomote sound to sense the world around them and in particularly to catch insects. These sounds are usually out of the humans range of hearing (Fellman 1993). This organization is similar to that of dolphins. The sound is in the form of clicks that increase as the bat gets closer to the insect or whatever it is tracking (Anonymous 1990). Unlike humans, most insects can hear the bats echolocation sounds. David D. Yager of the University of Maryland has found that the praying mantis has used this to its advantage.