Usopp: Mammals both produce milk and have hair. Ergo, a coconut is a mammal.
Chopper: I know you’re being facetious, but this is an actual issue with morphology-based phylogeny.
Luffy: *leans over and whispers to person beside me* what are they talking about.
Nami: *leans over and whispers back* Human ability to quantify and categorise natural phenomena is sketchy at best and wildly misleading at worst.
Franky: Consider the coconut.
Brook: This reminds me of that time Plato defined humans as “featherless bipeds” and Diogenes ran in with a plucked chicken screaming “BEHOLD A MAN!”
Robin: I love how you say “it reminds me of that time” like you were there.