A dog's tongue is a muscular organ covered in tiny, backward-facing barbs that help them lap up water and clean wounds.
Dogs use their tongues to cool down; panting helps regulate their body temperature.
Dogs have taste buds, but not as many as humans. Their taste sense is geared towards detecting meaty flavors.
A dog's tongue can convey emotions – a wagging tongue could mean they're happy or excited.
Dogs use their tongues for grooming, but their saliva also contains enzymes that can help heal their wounds.
Similar to human fingerprints, each dog's tongue print is unique, with distinct ridges and patterns.
The lapping motion of a dog's tongue is highly efficient, allowing them to drink rapidly.