Herpetology

Herpetology

(alt-text)

Birds are Aves, which is part of the clade Theropoda, which is in Saurischia, which is in Dinosauria. Those birds outside our windows are dinosaurs. We can clear out the rest of our brains because we now have the best fact.


There are four new shirts in the xkcd store,
along with posters and lots of other stuff!