1. The Tallest Animals on Earth: Giraffes are the tallest land animals in the entire world! An adult male can easily grow up to 18 feet tall, which means they are taller than two average-sized adult humans standing stacked on top of each other.

2. Super Long Blue-Black Tongues: A giraffe's tongue can grow up to 20 inches long! It is even colored a dark blue-black, which acts like a built-in sunshade to keep their tongues from getting sunburned while reaching for leaves all day.

3. Built-In Thorn Protection: Giraffes love to munch on tasty acacia tree leaves, which are covered in sharp, dangerous thorns. To protect themselves, they have a tough, thick layer of skin inside their mouths and extra-thick saliva to safely handle the pointy prickles!

4. Barely Any Sleep Needed: Because they are big targets for hungry lions out in the wild, giraffes don't have time to sleep deeply. They only need about 30 minutes to 4 hours of sleep a day, and they often take quick power naps while standing completely upright!

5. Surprise Neck Bones: You might think a neck that long needs dozens of bones, but a giraffe actually has the exact same number of neck vertebrae as a human—just seven! Each individual bone is just massively long.

6. Powerful Kick Defenders: Giraffes look gentle and graceful, but they pack a serious punch! Their long legs and heavy hooves are strong enough to defend themselves against predators like lions with a powerful kick.

7. Super High Blood Pressure: Because their heads are so far up in the air, giraffes need an extra-large, super-strong heart—weighing around 25 pounds—to pump blood all the way up that long neck against gravity!