Did you hear that?
Dogs dream?
Dogs can dream just the same as humans.
Dogs can hear at about 8,000 Hz (Hz is the measurement of sound). While humans can hear around 2,000 Hz at best.
You might be able to see your dog or dogs running or whimpering in their sleep. This happens because they are dreaming.
Night Vision?
Why the tail?
Dogs can see in the dark because of a special membrane in their eyes.
Sometimes dogs chase their tail just cause their curious.
Sometimes its because they have anxiety or fleas.
Or maybe sometimes they just want some exercise.
They sweat?
Why are dogs noses wet?
Dogs do sweat but only through the pads of their feet.
Dogs have a thin layer of mucous that helps absorb scent.
Then they lick their noses to to get a sample of it in their mouth.