Another treasure is this doodling by Darwin inside the Atlas of Ancient Geography. Maybe he could have been an artist if this evoution thing didn't work out.

Had the pleasure to visit Shrewsbury School and get a wonderful tour at their ancient libary. Charles Darwin attended this boarding school as a kid at the ages of 9-15. Among the amazing books in the library there is this original copy of the first edition of The Origin of Species.

I was surprised to see an incorrect definition of sex in the
@sciencemuseumldn.bsky.social in London. Sex is defined by gamete size—not physical appearances, chromosomes, or hormones, which are derivatives of the definition.