Add Yahoo as a preferred source to see more of our stories on Google. Some animals communicate at volumes that far exceed what humans can tolerate. From powerful vocal calls to thunderous natural ...

Sloths are some pretty interesting animals. Beyond their reputation for being slow, a host of different traits reveals a lot about their evolution and behaviors. Take for example their mating calls.

Some animals communicate at volumes that far exceed what humans can tolerate. From powerful vocal calls to thunderous natural sounds, certain species rely on extreme loudness to defend territory, ...