What is evolutionary biology?
Evolutionary biology is an integral part of biology in general - study and theory of evolution in organisms. More than just Subfield, one could perceive evolutionary biology as a lens through which all biology should be perceived, regardless of creationists. Evolutionary biology concerns the origin of species through genetic variation and natural selection and shared descent of species from conventional ancestors. And Student of Evolutionary Biology Is An Evolutionary Biologist. Wasn't Until The 1970s and 1980s that Universities Began To Create Departments with the therm "evolutionary biology" as part of their titles. A huge amount of fossil knowledge revealed in the beginning and mid -20th century allowed to observe the development of many organisms over time.
One topic that is popular in evolutionary biology is trying to find out when certain adaptive features appeared for the first time and many times have evolved in independent lines. For example, evolutionary biologists have found that the shells have evolved in at least 18 lines, the eye has only developed once, and four different times (Insect, Pterosaurs, Birds and Bats) developed for years, if not. The more structurally the adaptation is, the rarely it has developed independently.
Evolutionary biology is trying to track down the ancestors of modern organisms as far back and see how they developed from sometimes less sophisticated progenitors. For example, all modern ones are assumed that AY mammals have evolved from a smaller group of mesozoic tetraps called Therapsids. These animals lived all the way at the age of dinosaurs, 180 million years. If it wasn't, then there would be no modern mammals. Main pRolom in evolutionary biology came when a consensus appeared, supported by fossil evidence that modern birds developed from dinosaurs.
Another task of evolutionary biologists is to solve long -term evolutionary mysteries, such as the forerunner of modern amphibians and turtles. At present, there is uncertainty about which ancient amphibious group gave rise to modern amphibians and whether turtles come from newer reptiles, or whether they were divided from reptiles soon after the group developed.