![[Issue] 난민에 관한 과학적 팩트 4](http://dl.dongascience.com/uploads/article/thumbnail/201808/S201808N035.jpg)
the periodic drying and greening of northern Africa, which allowed Homo sapiens to move from Central Africa into the Arabian Peninsula and eventually into Eurasia about 120-60 thousand years ago. These vegetation cycles were induced by the wobble of earth’s axis with a period of about 20000 years, which caused changes in the seasonality of solar radiation and shifts in temperature and ...
have drifted apart - genetically and geographically. They are still both unmistakably camels, but the former, the "Arabian camel" has one hump, while the latter, the "Bactrian camel" has two humps, shorter legs and longer hair. They are different species. The llama of South America, separated much longer, has changed so much that it's not even recognizable as a camel, but it is a relative.In ...
or "elephant bird"), which weighed up to a ton, laid the largest known egg, served as the model for the "roc" of the Arabian Nights and was driven to extinction even before Europeans arrived.But Meier wasn't looking for elephant birds, he was looking for - and found - an animal at the other end of the scale : the "hairy-eared dwarf lemur," a primate thought to be extinct since at least 1964, ...
동아사이언스
디라이브러리
DS스토어
팝콘플래닛
