cervical vertebrae

Scientists have just announced the discovery of a new lizard species in Tatagonia, South America.

American biologist archaeologists have found a fossil bone of the world's largest dinosaur in the United States (when it grew to 18m long and weighed 30 tons).

In just 1 or 2 seconds, a giraffe can lift its head from the ground to a height of about 4.5 meters without ever being stunned. So why don't giraffes get dizzy at such a height?

Although we have not been able to popularize 3D printers at home yet, in medicine, this tool has become extremely useful.