How are different animals related?
If we know, animals were first developed during the Ediacaran period, about 610 million years ago. At this point, unicellular organisms have already been divided into plants, animals, mushrooms and other divisions. The first known animals resembled Cnidarians (jellyfish) and included a number of mysterious carpets, oval and tile forms that moved up to a meter on average (Ediacaran Biot). It is difficult to place the way in which EDIACARAN animals related to later forms, and this is currently in the debate. At the dawn of Cambrian, 542 million years ago, most of these animals died out and were replaced by numerous phyles generated during the so -called Cambrian explosion.
At the end of the Cambrian explosion, about 500 million years ago, representatives of virtually all 38 modern Phyla animals appeared. Even vertebrates were represented by primitive fish without jaws. At this point, however, there were still no ground animals. The Cambrian period was dominatedŘI, including Apex Predator ( anomalocaris ). Many organisms have developed eyes, armor and complex nervous systems for the first time during this period. The predation started the evolutionary arms race between predators and prey. The animals related to each other that most of them were arthropods.
Over the next 100 million years, the fish have evolved and have become more numerous and strengthened the vertebrates next to the invertebrates. Silurian, about 425 million years ago, plants began to colonize the soil, quickly followed by the first insects, including Millipedes, insects without wing and assortment of other arthropods. These insects have evolved from water arthropods. Meanwhile, the shallow sea was dominated by Eupterids, seabeds, some of which exceeded 10 ft (3 m) in length. The movement of some arthropod art meant that animals were somewhat less related because different groups developed in different directions to deal with themThe relevant environments.
About 330 million years ago, the lobe fish began to develop primitive legs and began to jump on the ground. This quickly triggered amphibians that dominated the earthly world to the appearance of amniotes about 300 million years ago. The "mother of all bulk demise" hit 251 million years ago and wiped out many novice amniotic, the largest amphibians, and reduced genetic diversity. Animals relate to each other closer than ever. In the end, amnote appeared and dominant lines, dinosaurs. These ruled the country for nearly 150 million years and at the end of the chalk mostly erased 65 million years ago. Modern animals related to dinosaurs are birds.
The primitive lines of mammals who survived the extinction of the dinosaurs diversified and became a dominant form of life on Earth. This line of mammals eventually gave us a origin, people.