Pet owners are keenly aware, amazed and sometimes mystified at how astutely their animals sense human feelings, be they sadness, sickness or even discord among those in the home. The science behind it is fascinating and still evolving.
Unlike animals, humans give a lot of attention to language, which can distract us from what can be learned through touch, sound and smell — senses that are highly developed in animals. This heightened awareness helps animals discern threats from safe situations. Their survival can depend upon their senses.