Animals send out messages for very specific reasons, such as to signal danger or for mating rituals. Some of these calls, like the ones that follow, are so loud they can travel through water or bounce off trees for miles to get to their recipient. A roar is a deep, bellowing outburst of sound forced through an open mouth. It is produced by animals of certain species. A roar is usually made using the hyoid, a small bone which is not completely rigid in adults. Animals roar for various reasons, including territorial proclamation, communication with other members, and anger. Additionally, the roar of an animal such as a lion is used in the process of finding and competing for a mate.
These amazing photographs bring a whole new meaning to coming face to face with danger.