Those little ridges on your ears aren't just there for show. markrober breaks down how they help you pinpoint where sounds are coming from
why ears have folds markrober
Mark Rober
Mark Rober 是一位美国 YouTuber、工程师和发明家，他将科学与工程项目变得趣味横生，吸引了数百万观众。
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A new ranking of the top 20 highest-paid creators has been released, with estimated earnings from March 2025 to March 2026. MrBeast leads the list at $300 million, followed by Dhar Mann at $65 million, Steven Bartlett at…
Top 20 Highest-Paid Creators 2026
lacy tried to impress mark rober by telling him the earth is flat 💀
Lacy meets Mark Rober flat earth
MARK ROBER WAS THE ONE WHO STOLE JASONTHEWEEN'S CAR OMG that's insane 😭
Mark Rober reveals car theft prank JasonTheWeen
