The Threespines Sticklebacks

There are a few factors to evolve the species. Many people question whether natural selection is a way of discovering that the population is in danger of early species formation. We know that evolution, ecology, natural selection, and the environment are all interrelated. But what is the seed that is real? Those that allow them to inherit specific functions. This article will focus on Beren Robinson's study he chose to study three kinds of fish from the coast of British Columbia.

2 inch long, light green to brown innocent armor pine velvet eats omnivorous river delicacy, appetizing from the bottom, - while eating nematodes and algae, a clear flowing stream of Southern California I live in a pool and a snail. It lasts about a year and usually passes the mating cycle. In this kind of fish, when courtship begins, the man finds a warm place in the stream, the water slowly, the vegetation is rich, the lovely nests are dug into the sand, the pieces of the small plant and the mountains of the seaweed It will be repaired by. "Spigins" - Myxoids rotate from his kidneys - and dig a hole in the sand to make an entrance and exit

Changes in the use of toolbox genes affect not only the large differences in the form of animals but also the differences in closely related species and populations. For example, in many lakes in northern North America, three types of Matsutake fish have been discovered - shallow water, benthic organisms, short barbs and open waters, long barbs. Since the last glacial age these two forms developed very rapidly in these lakes only 10, 000 years ago. Fish pelvic spinal length is determined by predation pressure. In the open ocean, the longer barbs help protect the nails from being swallowed by the larger predators. But at the bottom of the lake, long pelvic spurs are a burden. Cicadas larvae catch and feed young lizards by grasping them with thorns

Another member of the Andy Sih laboratory, Alison Bell conducted extensive research on three types of squid fish, a prehistoric small fish that resembles the outer wing panel and protrudes from the back. Jagged spear. In addition to finding the same range of actions in a thorny hand, Bell finds a tricky group of behaviors that show similar behavior, from very bold and bullying to very shy and cowardly behavior did. A very timid person. Their collective tendency seems to be shaped by the environment in which they were raised, whether predators or predators. Their appearance also reflects their environment. Time, more jagged thorns