Spiders Are Mammals! (Not Really. :)

[skreidle]

Mammal Hut, Penteflon IV, Flanged Brane Rotoaxis | Scenes from a Multiverse -- ["Mammals only, sir." "Excuse me! Spiders are mammals!"]

This particular webcomic meanders multiple universes and encounters all kinds of bizarre aliens, but this one made me think of this comm. :D