Bows and arrows, firearms, missiles and poop? The progress of invention marches forward through time as humans discover a new material to use in the manufacturi
Bows and arrows, firearms, missiles and poop? The progress of invention marches forward through time as humans discover a new material to use in the manufacturi
Why do rabbits and guinea pigs feed on their own droppings? How is munching on hyena dung helpful to an African leopard tortoise? And why might you spot scienti
How is yak dung turned into fuel for cooking in Tibet? Can manure from dairy farms really be used to produce electricity? And could your car one day be powered
Everything I Know About Poop gives parents an innovative and fun way to help their toddlers achieve toilet-training success, especially the stubborn ones. It us