If Earth had the same diameter as the head of a pushpin, how much would all of the other celestial bodies in the universe need to shrink to scale proportionally? It’s a fun, ridiculous question and ...

Chances are, you can easily recognize the bald eagle (Haliaeetus leucocephalus). After all, how many other birds can you think of that have those iconic brown feathers and white heads? However, when ...

This image shows a comparison of the size of the baby Parasaurolophus (green) to adult Parasaurolophus, as well as an adult and baby human. Disclaimer: AAAS and EurekAlert! are not responsible for the ...

A comparison of the body sizes of the smaller Hipposideros diadema bat and the larger H. dinops. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to ...