The lemur is evolutionary a mystery. The only island - they live in Madagascar split from Africa 145 million years ago, when the first one there are placental mammals does not yet exist, so the lemur, a primate ancestors should be after a long time didn't appear in Madagascar. But what time? Make sure the time is very difficult, in part, fossil DNA analysis and analysis of the different conclusions. Scientists will lemur, the accumulation of DNA mutations situation with their closest relatives in the mainland of China, such as the lorises and bush babies contrast analysis think recent common ancestor of the animals live in 6000 and 65 million years ago. But evidence is fossil lemur is evolved about 20 million years ago. Primates, however, especially in the fossil record of lemurs are notoriously discontinuous, so the researchers suspect just haven't found the right fossils, makes the lemur history looks very short.
Lemurs adult onesies is recommended:
没有评论:
发表评论