Bats are the gate Mammalia vertebrate beasts. And different from other mammals, they are the only flying mammals. Bat or a similar body size of species and their life cycle longer in the animals. A small bat can live 30 years or so , and mice with similar body size can only live one year.
In addition, one child and other small mammals have more different, bats generate only one child one to two generations.
in northern South America French Guiana's tropical rain forests, the sun is set for. At this point, the U.S. Natural History Museum zoologist Nancy Simmons, the woods are busy. She put up two rods on the floor, propped up between the two rods of a Da net, and then silently wait.
night fell, the forest's nocturnal animals mm bats, leaving the settle and began activities. When they fly by Simmons, a number of bats caught buffet the Internet. Simmons all night work, she cautiously untied netted bats. She carefully inspected every bat and then put into a cotton bag. Before dawn, she would determine which should be unlocked off the bat, which she brought to camp for beyond study.
through a small forest in the net in a broad scope, Simmons has caught 78 different species of bats. This is the bat species found in one location most of the time. but French Guiana is not the only bat a lot of areas. Earth continent besides Antarctica, are dispensed in different kinds of bats. bat almost the total number of mammal species on Earth 1 / 5. Since the night sky around the world, bats are flying, then the different types of How do bats genetic relationship between, which is the object of research scientists are attempting. Simmons shows us how she tries to create the relationship between the bat family tree.
you meet difficulties in the research process is what? < br> Because bats are nocturnal animals, so when most human work to mattress, we began preparations. In addition to must linger {awake|awake} all night outdoor, the biggest problem is difficult to bat on the night flight to study. So We had to catch them with nets.
when you grab a bat, you have studied what?
I am a family of biological morphology study organism's body structure, including external and internal morphology structure. For example, I studied the type of bat color plumes, bones and teeth of the type of shape.
these functions you can obtain from what information?
at learning the bat's body structure, you can get a bat habits Much of the information. For example, insect-eating bats to be proficient to lance the insect exoskeleton hard, so these bats have long, keen teeth; and fruit-eating bats,shellfish Other ., they must squeeze out the fruit nectar, Thus these bats have long had roomy, blunt teeth, a bit favor people teeth.
There are many bats do?
Currently there are 110 kinds of bats found. the larger flying foxes namely have wings extbring ... to an end to 1.8 meters of the gigantic bats, which eat mainly fruit. Sydney, Australia, some of the city park, there are many of these flying foxes. the world's smallest bat namely the bumblebee bat of Thailand,toronto escort, which is smaller than your little finger , the wings amplify merely 8 cm. these are insectivorous bats, the flight of small insects for edible. In between these 2 kinds of bats.
the difference between different kinds of bats have been so big up?
earliest records of bats from the early Eocene 52 million years ago, fossils. These fossils show antique bats bats like we look today. We also found fossils of many different kinds of bats This proves that the form of bats had been different then, type a lot.
between different types of bat phylogenetic relationships in the end what?
which we ought aspire to solve a big secret. Most scientists as long asbats can be divided into 18 alternatively 19 families. According to the characteristics of a catena of bats (including the morphological characteristics and habits), different kinds of bats are classified into these subjects. For example, bats belonging to the same subjects have alike teeth , bone structure, pinion fashion and eat the same type of food. But the scientists ashore the relationship between different bat families are unified understanding have even now, because there are too many features need to compare, mate, and the different bat Division variation between the quite complicated.
Why is it so difficult?
bats we studied most of the features are likely to be different kinds of bats in different historical times alone amplified. For example, millions of years antecedent , a group of long sharp teeth are insectivorous bats may be due to the context began to eat fruit, so that behind many generations, these bats teeth gradually transform broad and blunt. Meanwhile, dissimilar independent group of insectivorous bats may also behalf from into fresh fruit, these bats have evolved a broad, blunt teeth. so that even although these two types of bats are not very close genetic relationship,toronto escorts, merely the teeth have a shape similar to that in biology mm shrieked convergent development. to clarify this species of similar characteristics to distinguish the manifold types of bats, the real relationship between one of the important work.
So, How do you distinguish between different affinities of bats?
us from the globe collection of genetic characteristics of a variety of bats. In appending to the morphological characteristics of bats and living habits, we too began to bat the DNA for analysis. We found that DNA between differ species all have shrewd differences. These differences give us that differ genetic relationship surrounded bat species has catered invaluable message. By analyzing this information, we wish to lay a extra complete household of bat phylogenetic tree.
Why gather this information is important?
to study more about bats assist us defend them. a lot of bats types of human undergoing due to habitat destruction and the danger of extinction. through research we will be able to determine which bats are threatened with extinction, in order to take amounts to protect them.
conservation of bats, I prodigy why?
bat around eco-system plays a opener role. An important factor is the bat to break crops in some insects. For example, in some chapters of the United States, bats out one night to break thousands of tons of corn ear worm, these insects grain crops for food. If the bats disappear in these places, our farming ambition be devastating.
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