side view of dogs face panting with tongue hanging out

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close up of dogs face panting with tong hanging out. In addition to lapping up water and food, a dog's tongue is a heat regulator. That is, when a dog runs around and gets hot, the tongue hangs out to cool them down. Most people don't know this, but a dog's tongue actually gets larger during exercise due to increased blood flow. In turn, when a dog pants, the dog's entire body is cooled off through evaporation.

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Size: 3481px × 5200px
Location: field berkshire england
Photo credit: © ImageSelect / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: balck, bred, close-, collie, color, colour, cross, crossbred, dog, face, full, german, gsd, hanging, mouth, open, panting, scamp, shepherd, tan, tongue, tri, tri-color, tri-colour, trotting, white