Why Do Nine-banded Armadillos Jump?
The nine-banded armadillo stands out as the only armadillo species capable of leaping straight up into the air, reaching heights of about three to…
Tag
Feet
When Were Tennis Shoes Invented?
Tennis shoes actually go by many different names: sneakers, athletic shoes, trainers, etc. The word was already in use at least as early as…
What Are Stilts Used For?
Stilts are one of two long pieces of wooden poles, with places to rest your feet on, on which you can walk far above…
Plane and Simple
A boy who is three feet tall puts a nail into a tree at his exact height. He returns two years later when he has grown by six inches and th
Why Are the Ibex so Good at Climbing?
The ibex also known as the the Alpine ibex, steinbock, bouquetin, is a species of wild goats living in rocky or mountainous regions from…