If more cells mean higher cancer risk, whales and elephan... | funfact.wiki | funfact.wiki
If more cells mean higher cancer risk, whales and elephants should constantly get cancer. Yet they rarely do—less often than smaller animals. This contradictory phenomenon is called "Peto's paradox."
Braess's paradox describes how building new roads can slow down traffic. When every driver picks their optimal route, the collective result worsens. When Seoul's Namsan Tunnel No. 2 was closed in 1999, the city's average road speed actually increased.
The 'Sleeping Beauty problem' is a famous probabilityparadox. If a coin lands heads, she is woken once; if tails, twice with memory erased. The 'Halfer' camp says heads is 1/2, the 'Thirder' camp says 1/3, and both answers are logically valid.
An elephant's tusks are not molars but massively overgrown upper incisors — front teeth. The Chinese characters for ivory use the character for "molar," adding to the misconception, but anatomically tusks grow from the front of the jaw.