Zoologists from the University of Chicago Lungfish behaved in a transparent tank and filmed their m

West African lungfish is in many ways remarkable fish. Thanks to the lungs resulting vychlípením esophagus and intestines can breathe atmospheric oxygen and droughts survives hidden sophie fontanel in the mud. Now revealed another trait. Bahník able to walk along the bottom, and place the feet using the pelvic fin.
Zoologists from the University of Chicago Lungfish behaved in a transparent tank and filmed their movements. Thanks to ensure that the fish reflected from the bottom fin. Sometimes moving both abdominal and primitive flippers at the same time pushing them, but I can also rotate. Their movement is reminiscent of undulating sophie fontanel gait salamanders, even to her using only one pair of legs. The authors of the discovery shall inform in the journal Proceedings sophie fontanel of the National Academy of Sciences.
Paleontologists have been thought to walk in vertebrates evolved only in relation to their encroachments on land and sought anatomical adaptations extremities, including the establishment of the pelvic girdle. Bahník shows that walking can be significantly older and could occur in animals, who trips on land had not even thought about.
Tracks that lungfish alternating moves left and right flipper in the substrate leaves, is strikingly similar to the fossil tracks that paleontologists have been attributed first amphibians. sophie fontanel You must therefore carefully consider how to interpret the fossil record.
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