Super Slow Movers
Sloths are the slowest mammals in the world! They move so slowly that algae can actually grow on their fur, helping them blend in with the trees. 

Upside-Down Life
Sloths spend most of their lives hanging upside down in trees — even when they eat, sleep, and have babies!

Swimming Champs
Even though they're slow on land, sloths are great swimmers! They can move three times faster in water and even hold their breath for up to 40 minutes. 

Sleepyheads 
Sloths love to snooze. Some sloths sleep up to 15-20 hours a day, snuggled in the treetops. 

Two Types of Sloths
There are two main types of sloths: two-toed and three-toed. You can tell them apart by counting their toes (but only on their front feet!). 

Tallest Animals on Earth
Giraffes are the tallest land animals! Adult males can grow up to 18 feet (5.5 meters) tall — that’s  taller than a two-story house!

Super Long Necks
A giraffe’s neck can be over 6 feet long, but guess what? It still has only seven neck bones — just like humans!

Towering Legs Built for Speed
Their super long legs help them run up to 35 miles per hour (56 km/h) in short bursts — pretty fast for such a tall animal!

Blue Tongues!
Giraffes have dark blue or purple tongues that can be over 18 inches (45 cm) long. It helps them reach tasty leaves without getting sunburned!

Sleep Standing Up
Giraffes only sleep for about 30 minutes to 2 hours a day, and sometimes they sleep standing up to stay alert for predators.