Elephants don't have a thick coat of fur to shield them from the sun's rays. So how do they protect their skin? Caretakers at Smithsonian's National Zoo show us their unusual skin care regimen. #ZooQs

Pop culture tells us that elephants love peanuts. But is that really true? Caretakers at Smithsonian's National Zoo give us a look at their daily diets. #ZooQs

Seals and sea lions spend a good chunk of their time underwater. Caretakers at Smithsonian's National Zoo fill us in on how their eyes adapt to sea life. #ZooQs

If you're near a sea lion, chances are you'll hear its distinctive bark before you see it. Here, caretakers at Smithsonian's National Zoo explain why they make these sounds and what they're trying to say.

If you were asked to tell the difference between these similar sea mammals, could you? Caretakers at Smithsonian's National Zoo show us how. #ZooQs

Even though porcupines rarely quill on purpose, working with them requires patience. Caretakers at Smithsonian's National Zoo tell us how they handle their spiky friends. #ZooQs

These spiky creatures are named for their peculiar tails. The caretakers at Smithsonian's National Zoo tell us why. #ZooQs

A porcupine's prickly coat of quills is its first line of defense. But what can these small mammals really do with their home-grown needles. A caretaker at the National Zoo clarifies. #ZooQs

The most noticeable feature of a tortoise is its massive shell. But what happens if you touch it? Caretakers at Smithsonian's National Zoo fill us in.

Consummate herbivores, tortoises have a healthy and hearty diet at Smithsonian's National Zoo. Here, caretakers walk us through what goes into their special salad mix.