50 Wacky Inventions Throughout History describes 50 unbelievable inventions that seem too crazy to be true.

With 50 Wacky Inventions Throughout History, history has never been so fun--or wacky! Have you ever heard of a bike TV? Or a bird diaper? 50 Wacky Inventions Th

Have you ever heard of a bike TV? Or a bird diaper? Wacky Inventions Throughout History describes some of the wackiest inventions that seem too crazy to be true

Learn about 50 weird and funny things pets do, like why dogs chase their tails and how cats land on their feet, along with other animal habits and personality q

Did you know that a sneeze moves at about 100 mph? Or that an average person is 7.5 heads tall? Did you know that humans share 99.9 percent of their DNA with ea