lab

DNA showing unravelling strands.  Pen and ink diagram.

Dissecting microscope diagram.  Pen and ink line drawing. Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books)

Compound microscope illustration.  Line diagram Illustration from “30 Animals that made us smarter” by Patrick Ayree (BBC Books)    

Cockroach Blattodea prototype with one wng extended to show body underneath, cut to white

American Cockroach periplanta america with long antennae cut to white

African clawed toad Xenopus laevis