According to their study, neither Ida nor Afradapis have any living descendants, meaning they became extinct at the end of a sidebranch of the evolutionary tree.
据他们的研究，无论是伊达还是Afradapis都没有后代，这意味着他们在进化树分支的末端已经灭绝了。
But baboons are on a whole different limb of the evolutionary tree.
但狒狒是在一个完全不同的进化树枝上。
A copy of Charles Darwin's notebook containing his idea of an evolutionary tree. The notebook is in the American Museum of Natural History in New York City.
(图片)查尔斯·达尔文笔记本的复制件，里面包含他的进化树思想。笔记本原件在纽约的美国生物史博物馆。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
The fossil dates from a time period when feathers or feather-like appendages have been seen, but the dinosaur is from a branch of the evolutionary tree that is more primitive.
这一化石形成的时代是羽毛或类似羽毛的附属物开始出现的时代，但是这种恐龙来自一个更加原始的进化枝。
应用推荐