These tools replace the missing body part. They help people walk. They help people lift things. They help people write.
Photo Credit: Dmitry Markov152/Shutterstock
In the Know
What Is a Water Bear?
Water bears live where it is wet. Some live in … read more
In the Know
Happy 250th Birthday, America!
America turned 100 in 1876. There was a big fair. … read more
In the Know
Do Plants Eat Meat?
The pitcher plant eats meat. Just like humans, they are … read more