Contrary to its portrayal in Jurassic Park, the Tyrannosaurus rex probably didn’t roar. Instead, scientists believe it either hissed or rattled, like a rattlesnake.

The microwave was invented by accident when engineer Percy Spencer walked by a radar set and the candy bar in his pocket melted. The first food cooked by a microwave on purpose was popcorn.

Due to a genetic defect, cats can’t taste sweet things.