evolzootion:

whatthefauna:

Alligators bellow in infrasound to attract mates and declare territory. The sound causes a sprinkling of waves around their backs, called a “water dance.”

And now we know where the makers of Jurassic Park got their T-Rex sounds.

During thunderstorms at my previous zoo, our large male would mistake the thunder as a rival male, and start to bellow. It would shake the whole zoo. Super cool!