It’s a report about how animals evolve from water to land. The researchers find the striking evidence of the intermediate steps by which some marine vertebrates evolved into animals that walked on land. Actually, it really makes me amazed because we humanbeings are different from fish at all. But the way our skeleton transiting has a deep relationship with fishes.
The humans’ predecessor was the fish, a predator up to nine feet long which was also the other species’ predecessor,including amphibians, reptiles and dinosaurs, mammals and eventually humans. The animals were first changing their head and braincase, which a mobile neck was emerging and a bone associated with underwater feeding and gill respiration was diminishing in size. When their body was relatively fixed, the flexible neck is important. And then these animals started live in shallow-water settings and begin to rely less on gill respiration. Second,according to what the researcher said,’’ the hyomandibula lost its original functions little by little and they gained the role in hearing at the same time.In humans,as in other mammals, the hyomandibula, or stapes, is one of the tiny bones in the middle ear.’’
These two things I mentioned above are the new studies which are being published this Thursday in the journal Nature.And there are more details in the reports.If anyone who interests in it can get much more information from the journal Nature.(230)
The humans’ predecessor was the fish, a predator up to nine feet long which was also the other species’ predecessor,including amphibians, reptiles and dinosaurs, mammals and eventually humans. The animals were first changing their head and braincase, which a mobile neck was emerging and a bone associated with underwater feeding and gill respiration was diminishing in size. When their body was relatively fixed, the flexible neck is important. And then these animals started live in shallow-water settings and begin to rely less on gill respiration. Second,according to what the researcher said,’’ the hyomandibula lost its original functions little by little and they gained the role in hearing at the same time.In humans,as in other mammals, the hyomandibula, or stapes, is one of the tiny bones in the middle ear.’’
These two things I mentioned above are the new studies which are being published this Thursday in the journal Nature.And there are more details in the reports.If anyone who interests in it can get much more information from the journal Nature.(230)
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