They evolved from fish. Not long ago, some Chinese scientists found five fish fossils (化石). The fish are about 436 to 439 million (百万) years old. What is special about them? Well, they have jaws (下颌).Jaws are important for human evolution. With jaws, ancient fish could bite and...
开启了鱼类登陆,并最终演化成为其他动物——包括人类的进程。 “These fossils provide an unprecedented opportunity to peek into the ‘dawn of fish’ 朱敏院士说,“这些化石为我们一窥‘鱼类的黎明’提供了前所未有的机会, and help scientists trace many human body structures back to these ancient fish, 还...
Interestingly, modern humans possess peculiar laryngeal and facial muscles that are not present in the majority of the other mammalian taxa; this seems to corroborate the crucial role played by vocal communication and by facial expressions in primate and especially in human evolution. It is hoped ...
B.They led to research into the future of fish.C.They made it clear when the Silurian Period began.D.They provided more evidence for human evolution.答案(1)推理判断题。根据第一段Humans evolved (进化) from apes.This is what we learned in biology class.But what came...
Fish Fossils Found In China Offer Clues On Human Evolution: Researchers 研究人员:在中国发现的鱼化石为人类进化提供了线索 Fish fossils dating back 440 million years are helping to "fill some of the key gaps" on how humans evolved from fish, researchers said on Wednesday. ...
In human, ectopic pacemaking and subsequent pathologies may originate from sinus venosus-derived myocardium surrounding the coronary sinus and the superior caval vein. In ectothermic vertebrates, i.e., fishes, amphibians and reptiles, the sinus venosus aids atrial filling by contracting prior to ...
TAIYUAN, June 1 (Xinhua) -- A new study conducted by scientists from China, Sweden, and the United Kingdom reveals that the human middle ear evolved from fish gills. According to Gai Zhikun, a Chinese Academy of Sciences researcher and the first author of the article "The Evolution of th...
Sex chromosome evolution in fish. II. Second occurrence of an X1X2Y sex chromosome system in Gymnotiformes A multiple sex chromosome system of the X 1 X 1 X 2 X 2 :X 1 X 2 Y type is reported to occur in the fish species Brachyhypopomus pinnicaudatus (Gymnotifor... LFD Almeida-...
The special focus of the book, the “Nine Key Transitions” in the evolution from fish to human, also deserves the readers’ scrutinization. In this book, the historical march of vertebrate life in China is exampled by fifteen representative faunas which were based upon several hundred thousand...
When you think about human evolution, there’s a good chance you’re imagining chimpanzees exploring ancient forests or early humans daubing woolly mammoths on to cave walls. But we humans, along with bears, lizards, hummingbirds andTyrannosaurus rex,are actually lobe-finned fish. ...