The snow leopard has clever camouflage, and the lyrebird can imitate over twenty different bird songs. But neither the snow leopard nor the lyrebird comes in at number one in the countdown. Find out who does, and how undercover humans compare to the most extreme animal disguises.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $20. ThriftBooks.com. Read more. Spend less.