资讯

Archaeologists in China have dated dinosaur eggs for the first time, revealing the age of the ancient fossils, according to a ...
Those structures had to be made of something, possibly proteins, Schweitzer reasoned, launching her quest to recover remnants ...
Using uranium-lead dating, researchers calculated the age of the eggs, rather than the sediments around them, at the ...
Eggs, as reproductive structures, existed long before the appearance of modern birds, including the so-called domestic ...
A fossilized toe bone from South Africa shows that cancer afflicted early human ancestors 1.7 million years ago. Evidence ...
After nearly two decades, SDSU’s Biology of Dinosaurs course will return from extinction in spring 2026 with John Cook at the ...