How Long Did Dinosaurs Rule The Earth? – The Fact a Day – #137

Fact #137

Overview:
In today’s fact we learn about Dinosaurs! Mr. Toes teaches us when how long dinosaurs ruled the Earth, and has a fun visit from Grandpa!

The Fact a Day:
Did you know that…Dinosaurs first appeared during the Triassic period about 231 million years ago. They ruled the earth for 135 million years until an extinction event of most dinosaurs. If all of Earth time from the beginning of dinosaurs to today were compressed into 365 days, the dinosaurs appeared in January and became extinct in the third week of September. By comparison, humans would only have existed on Earth since December 31st (New Years Eve).

Fact References:

1. https://www.amnh.org/
2. https://www.thedinosaurmuseum.com/
3. https://paultonspark.co.uk/
4. https://artsandculture.google.com/
5. https://www.nationalgeographic.com/
6. https://www.usgs.gov/