|
Mammals could keep themselves warm. Perhaps that is why they survived the meteorite. They evolved quickly, filling most life-styles left empty by the dinosaurs.
Most mammal families we know today had appeared by 50 million years ago. Whales spread in the oceans while hoofed plant-eating animals, the horse family, became common on land and evolved into giants. Meat-eating and flying mammals also appeared at this time. |
|
|
Useful Links |
Biological Environment > Spread of mammals
Loading
This site tells the story of the history of the universe. Click Earlier and Later to follow the story.
Note: Many facts have been simplified to make them easier to understand.
Click here to read Time Crystal, history of the Universe as sci-fi fantasy romance!
Note: Many facts have been simplified to make them easier to understand.
Click here to read Time Crystal, history of the Universe as sci-fi fantasy romance!
