Using specialized parts of their bodies for tools and working with materials they find around them or produce organically, some animals construct spectacular structures that provide them with shelter, safety, and easy access to food.

The horseshoe crab has been on Earth for 350 million years. An ancient and complex anatomy hides within its domed shell. From its 10 eyes to its tube-like heart, the horseshoe crab's unique physique may surprise you.

While Komodo dragons may not fly or breathe fire, they are capable of a feat equally miraculous: virgin births.

Learn how the anatomy of a cheetah makes it the fastest land animal in this interactive feature.

Four-inch canine teeth are equipped with pressure-sensitive nerves, which guide tigers to the lethal space between vertebrae when they make a kill.

The queen termite is an egg-laying machine, producing an egg every three seconds from her enormous, pulsating abdomen.

To keep it from becoming light-headed, the giraffe’s elastic blood vessels contain a series of valves to control blood flow when the animal lifts and lowers its head.

Jackrabbits have powerful hind legs, which propel them along at more than 40 miles per hour.

To leap straight out of the water, the crocodiles use power from their tails, which have ball-and-socket joints between the vertebrae for maximum motion.

Explore this interactive feature to learn about different aspects of the crocodile's anatomy.