These rats will maintain these weird positions for 15 to 30 minutes without moving. This catatonic effect has been induced by a minute amount of a chemical. The effect wears off completely in about an hour.

She shut down her equine massage practice in a Washington suburb after state officials told her state law only allows veterinarians to perform such services. Now she's suing two state agencies, saying regulators are unfairly barring registered massage therapists who want to practice on animals. Animal massage regulations vary from state to state, with some allowing only veterinarians to practice. Clemens' case is being closely watched by those in the animal massage industry, who say business has grown steadily along with interest in other alternative treatments and pampering for pets.

This study is the first to demonstrate that human yawns are possibly contagious to domestic dogs (Canis familiaris). Twenty-nine dogs observed a human yawning or making control mouth movements. Twenty-one dogs yawned when they observed a human yawning, but control mouth movements did not elicit yawning from any of them. The presence of contagious yawning in dogs suggests that this phenomenon is not specific to primate species and may indicate that dogs possess the capacity for a rudimentary form of empathy. Since yawning is known to modulate the levels of arousal, yawn contagion may help coordinate dog–human interaction and communication. Understanding the mechanism as well as the function of contagious yawning between humans and dogs requires more detailed investigation.