Why Rats Laugh and Jellyfish Sleep

For fans of accessible and fun popular science comes an exploration of evolution’s quirkiest puzzles and most enduring mysteries. 

Why do cats live longer than dogs? Why do bees have yellow stripes? Why can we smell a skunk from a mile away? Such questions can be seen as puzzles about creatures’ evolved traits. Besides triggering our curiosity, they focus our attention on beguiling designs that have been millions of years in the making. Indeed, looking at the living world through a Darwinian lens reveals its colossal depth in a way that’s all too easy to miss in the age of endless distractions. You need only summon up your inner inquisitive 7-year-old to notice such puzzles, and to find yourself looking deeper while considering possible solutions.  

In this lively book, science writer David Stipp ponders Darwinian puzzles about nine familiar creatures and things—bumblebees, dogs, sparrows, caffeine, earthworms, and sleep, among others—to show how rewarding it can be to look at nature in a deeper way. By revealing hidden depths of the ordinary, Why Rats Laugh and Jellyfish Sleep shows not only that fascinating intricacies lie just beneath the natural world’s familiar surfaces, but that noticing them lets us make connections we didn’t realize existed. 

This is backyard biophilia at its most entertaining and enlightening. 

• “A lovely romp through Darwinian evolutionary puzzles, ranging on topics from earthworm intelligence to a novel take on the origin of dogs. Entertaining, witty, AND educational!”
  Irene M. Pepperberg, Research Professor, Department of Psychological and Brain Sciences, Boston University, and author of the New York Times bestseller Alex and Me
• "Stipp’s curiosity is contagious. He makes the mundane magical and encourages us to do the same. Why Rats Laugh and Jellyfish Sleep will ensure that you never look at a sparrow, a skunk, or a worm in the same way again."
  Steven N. Austad, University of Alabama distinguished professor of biology and author of Methuselah's Zoo and Why We Age