Now that I've returned home and a couple of days have passed, I think it only right and proper that I give a well-considered summary of the Natural History Museum's Darwin exhibition.
snails
Hypothesis well and truly falsified!
There are snails in my garden!
Reversing Darwin
In which Gould, Dawkins and Darwin all make a contribution.
Snail trails
Slicker snails stick to the trail.
An ugly fact
Snail find falsifies my hypothesis.