((Eep, sorry. I just now noticed your post.))
There's certainly a section on biology! Or rather a section on science in general with a sub-section on biology. The latter could probably be found in the self-help section.
As Jupiter begins his search a peppy young half-green dragon with a name-tag that reads 'Emerald' approaches him. She's generally human in general build, though with a stubby tail and a membranous crest in place of hair. "Hello, welcome to Hoarders! Can I help you find anything today?"
No doubt she knows where to look!