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Longest animal penis relative to body size

Longest animal penis relative to body size
Who
Barnacles
Where
Not Applicable
When
1500 BC
The longest penis of any animals relative to their body is that of the barnacles. The body of these sessile crustaceans often measures just a few centimetres long, but their penis can be as much as 40 times as long as this, enabling them to mate with other barnacles positioned some distance away.