• They Can Detect Pregnancy – A dog’s sense of smell allows them to detect hormonal changes in humans.

• Dogs Can Predict Migraines – Some service dogs are trained to sense changes in a person’s body chemistry before an attack.

• They Can Track Time Using Smell – The way odors change throughout the day helps dogs understand time passing.

• Some Dogs Are Trained to Detect PTSD Episodes – They provide support and alert their owners before symptoms escalate.

• Dogs Have a Sixth Toe (Dewclaw) for Extra Grip – Some breeds, like Great Pyrenees, use it for climbing.