bird embryo造句

• In the Bay, it has poisoned bird embryos and contaminated diving ducks.
• They note that while several bird embryos have been reported of a similar age, none had feathers.
• Our studies of bird embryos show that only digits 2, 3 and 4 develop and this creates a problem,
• Thus, perhaps the characteristic palate was actually a frozen stage that many carinate bird embryos passed through during development.
• Beaks all derive from similar-looking tissues in very early bird embryos, said Jill Helms, an orthopedics researcher at UC San Francisco.
• A balut is a developing bird embryo ( usually a duck or chicken ) that is boiled and eaten from the shell.
• Johnson has worked with sample types as diverse as shark fins, bird embryos, gall bladders, seized fish meat, salted animal skin, bones and horns.
• He mentions other anatomical features of bird embryos that hint at their reptilian ancestry as well, such as the embryonic splitting of the pygostyle into distinct separate vertebrae.
• The " hands " from bird embryos and dinosaurs are mismatched, Olson said, and " there is no way that birds and dinosaurs could be directly related ."
• But, there is evidence from bird embryos that gives rise to the idea that lymphatic vessels arise in the embryos through a vasculogenesis-like process from the lymphangioblastic endothelial precursor cells.
• Feduccia and Burke argue that in their bird embryos, the wings _ which correspond to the hands of dinosaurs as well as humans _ bear three fingers but no thumb.
• But contrary evidence from studies of bird embryos has long been discounted by the majority of experts, according to Sylvia Hope, an ornithologist who studies bird evolution at the California Academy of Sciences in San Francisco.
• The title video is a zoom out starting from a single oxygen atom, to molecules, to animal cells, to a bird embryo, which leads to the Earth with the " Kurzgesagt  In a Nutshell " title.