Nature doesn't always play nice, and Things That Make You Go Yuck!: Crooked Crittersshowcases some of the worst offenders in the plant and animal kingdom. You'll meet trespassing toads, insects in disguise, brood-borrowing cuckoos, and many more. It's a rogue's gallery of some of nature's roughest, meanest species. Whether it's nature's slimiest organisms or the weirdest mutations, Things That Make You Go Yuck! celebrates survival of the fittest, grossest, craziest, and creepiest things in nature, proving once and for all that life in the wild is anything but ordinary.