• Dogs can hear sounds up to four times farther away than humans – They are excellent early warning systems.

• Dogs can identify human emotions just by looking at facial expressions – They know when you’re upset.

• Dogs have an extra eyelid – It’s called the nictitating membrane and protects their eyes.

• Dogs can detect earthquakes before they happen – Scientists believe they sense vibrations.

• Dogs have a unique way of cooling down – They sweat through their paws and regulate temperature by panting.