We're All Mutants, Here...

Turns out, about 85k years ago a mutation allowed our ancestors to start using plant fats to make important brain tissue:

http://www.terradaily.com/reports/Genetic_mutation_may_have_allowed_early_humans_to_migrate_throughout_Africa_999.html

Up and Away!

Interesting site with images and (rather sarcastic) descriptions of many unusual flying machines:

http://davidszondy.com/future/Flight/airwheel.htm