A herd of horses running through shallow water.

A group of horses came to the watering hole at the crater of an ancient volcano that last erupted 10-20 thousand years ago. What’s amusing is that among this group, there was a watchful horse keeping an eye on the surroundings. When I approached, it signaled the others, and they all promptly left. For about five minutes afterward, they expressed their displeasure at being disturbed by snorting before going about their business.