鯊魚的癌症發病率沒有那麽低

人類一生大致是20%，美國人比較高，一生接近40%，
在自然界被發現的鯊魚，癌症發病率 < 0.01%，注意這不是一生的發病率，一生的癌症發病率比這個還要高很多。

 

AI的總結：

Summary Comparison

Species	Estimated Lifetime Cancer Risk	Notes
Humans (U.S.)	~40%	Common in old age; rising with lifespan
Sharks	Likely <1%, possibly <0.1%	Cancer rare but confirmed in several species
Other Fish	0.1–1%	Varies by species and environment (pollution increases rates)