Everyone loves to laugh, and to hear and see funny things-but what makes something funny in the first place? What is humor? This book explains why our brains think something is funny, what happens to us physically when we laugh, why you can tickle your friend but not yourself, and so much more. Plenty of jokes and silly anecdotes are included, and hilarious line drawings appear on almost every page.

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With dramatic full-color photos throughout, award-winning author Donna Jackson brings to life the inner workings of an animal emergency room, profiling the important work ER veterinarians do behind closed doors. Animals survive traumas with the help of high-tech X-rays, ventilators, endoscopes, and more importantly, the expert care of veterinarians and veterinary nurses who love animals, science, and a daily dose of adrenaline! It takes loads of courage and compassion to be an ER vet!