Dừng lại đi

-----

In a groundbreaking experiment (thí nghiệm), scientists have transformed (biến đổi) chicken embryos (bào thai) to give them a snout (mũi, mõm) and palate configuration similar to that of small dinosaurs (khủng long) like Velociraptor and Archaeopteryx.

The team did not set out to create a “dino-chicken” per se, said the lead authors of a study published in the journal Evolution. Bhart-Anjan Bhullar of Yale University in New Haven and Arkhat Abzhanov of Harvard University in Cambridge, US, originally wanted to understand how the bird beak (mỏ), a very vital part (phần rất quan trọng) of bird anatomy (giải phẫu) that has been crucial for their success, evolved.

“Whenever you examine an important evolutionary transformation, you want to learn the underlying mechanism,” Bhullar added.

Finding a mechanism to recreate elements of dinosaur physiology has been a topic of popular interest ever since the idea that birds evolved from dinosaurs emerged in the 19th century, when scientists discovered the fossil of an early bird-like animal called Archaeopteryx. Similar to other fossils more recently discovered, the animal had wings and feathers, but it also looked a lot like a dinosaur.

Bài trước: Có trò vui rồi