Science | Life Science | Legumes

Legumes produce their fruit as a pod and generally possess nitrogen-fixing bacteria in nodules on their roots. Because of those bacteria, legumes increase soil's nitrogen content. Some examples of legumes are soybeans, peas and alfalfa.

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How do Mexican jumping beans work?

I am a cartoon nut. I've noticed that a fair number of cartoons feature "Mexican jumping beans." For example, Speedy Gonzalez is trying to outwit a foe and uses Mexican jumping beans to escape. What I want to know is: Are Mexican jumping beans for r