You think you've got lots of ants? Read on. Ant Super-colonies on this Moment of Science.
One parsec is three point two six light years. And contrary to popular belief, a light year isn’t a unit of time at all! It’s also a unit of distance.
Also, when birds are trapped over and over again through the years, this gives scientists a sense of their lifespan. How else can you know if the cardinal at your bird feeder is the same one that was there last year?