
What makes a mammal a mammal? Our spine, say scientists
Technology.org,
Mammals are unique in many ways. We’re warm-blooded and agile in comparison with our reptilian relatives.
Mammals are unique in many ways. We’re warm-blooded and agile in comparison with our reptilian relatives.
Edaphosaurus, an early mammal relative that lived around 300 million years ago, which had a more primitive backbone with just…
Säugetiere sind in vielerlei Hinsicht einzigartig. Sie sind warmblütig, haben Fell oder Haare und die meisten von ihnen werden…