Behold the wild world of mammals in both English and Spanish!

How does a platypus fight? Where does a marmot spend the winter? When does a camel need water? Unlock the answer to all these secrets and more in this bilingual illustrated guide to the world's most interesting mammals.

Fuzzy, scaly, clawed, and finned, mammals can be found in the depths of the ocean and the heights of the mountains. Mammals Unlocked / Mamíferos descubiertos introduces young readers to the vastness of the world around them in an easy-to-understand, interactive question and answer format. From the humble rat to the mighty mountain lion, every mammal shares three special characteristics. But the similarities aren't always as easy to identify as they seem. Mammals Unlocked features everyday favorite animals like dogs, whales, and llamas, and some you've never heard of--the delights of the honey possum and the mysteries of the saola await!