Parents of newborn babies learn very quickly that there are many different ways for one baby to cry. One type of cry means that the baby is hungry, another denotes that the baby is ready to be changed and yet another may mean that the baby simply wants some attention. Though these cries may seem indistinguishable to an outsider, parents learn to respond with exactly what their child needs.
Parents don't tend to put as much thought into what their child's laugh might mean, unless it's so diabolical that it clearly indicates an attack on another sibling. In fact, very few people think about different types of laughter. Though there are many ways to laugh, from giggles to guffaws and from chuckles to cackles, it turns out that we humans laugh at the strangest things. And it's more than just the latest David Sedaris book or episode of "Saturday Night Live" that has us doubled over -- only about 90 percent of our laughter is related to jokes or humor [source: Trump]. So what are some other situations that get us laughing?
