YouTube: https://youtube.com/watch?v=YM633vhGCHg
Previous: Are fireflies going extinct?
Next: Is it okay to rinse your mouth after brushing your teeth?

Categories

Statistics

View count:594,436
Likes:24,010
Comments:2,598
Duration:19:57
Uploaded:2025-06-25
Last sync:2025-09-14 17:45
Please, come down the rabbit hole with me...

Try Rocket Money for free: https://RocketMoney.com/hankgreen [rocketmoney.com]
No transcript to display.