Prairie dogs have a sophisticated language. Not only do they warn others about different types of predators (hawk, coyote, human, etc.), but they also describe the threat. A study found that prairie dogs used different sounds to describe different humans walking through their village. The prairie dogs identified individuals as “the tall human in the blue” and “the short human in the yellow,” among other traits. ¹⁾.

Guinea Pigs express their happiness through a movement known as “popcorning.” The maneuver is named as such because it involves a sudden, directly upward jumping action, which is often performed without warning. ²⁾.