And four-leaf clovers may come in handy—but there's one thing to know before you run out onto your lawn in search of a lucky ...

Mostly, the four-leaf clover is not a separate species, just a genetic anomaly. That's why people feel so lucky when they stumble across one. The origin of four-leaf clovers bringing good luck ...

How rare are four-leaf clovers? One thing that makes the four-leaf clover a lucky charm is its rarity. The chances of stumbling across one are typically about one in 10,000—much less likely than ...