Some species of porcupines have 30,000 quills. Sea horses have bony plates to make them less appetizing, and a sea urchin’s spines may be 1 foot (30 cm) long a

Armored skin, bony plates, and shells are key defenses animals employ to survive in their natural surroundings. By examining the many forms animal armor can tak

Your pet hedgehog just made a spitball. Is that normal? This book introduces readers to the ins and outs of care for a pet hedgehog. Readers will get informatio

Stenches, slime, excrement, and vomit are all gross—and very effective—animal defenses. A dog that has been sprayed by a skunk will rarely want to approach th

Pronghorn, kangaroos, rhinos, and ostriches all have something in common: speed! They’re not only fast, but they’re fast enough to outrun their predators. Thi