The nautilus, a deep-sea cephalopod, is often called a “living fossil” due to its resemblance to ancient ammonites. With its spiral shell and jet propulsion swimming, the nautilus has remained ...
The work was done in collaboration with colleagues from Canada and Poland. "The discovery of palm fossils this far north provides clear evidence that the Arctic was once ice-free, with a climate ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果