11/07/2026
Myth busting. Double layer coats don't keep dogs cool in hot weather
🐕DOGS, FUR, PILOERECTION, INSULATION & THERMORGEULATION!🐕
🐶Some common misinterpretations!🐶
Many of you will have seen the images on the left below explaining how a dogs coat, especially a double coat, is supposed to keep it "warm in winter and cool in summer".
This is based on some fallacies. The primary one is that the coat "traps a cool layer of air between the skin and the outside". This could be true, except for ONE MAJOR OMISSION! The fact that the dog is continually producing heat it needs to get rid of. Below ~35°C (ambient) the dogs primary mechanism for heat dissipation (keeping cool) is CONVECTION (loss of heat across the skin surface). Above ~35°C panting becomes dominant.
The second major inconsistency in the "coat keeps them cool" argument is nature itself. In hot weather, the hairs lie flat. In cold weather the hairs are raised (PILOERECTION) to TRAP AIR to IMPROVE INSULATION to keep the dog WARM! They DO NOT RAISE THEIR HAIRS TO KEEP COOL IN HOT WEATHER!
On this page I am sure I am preaching to the converted, but please feel free to SHARE this in dog groups. But be warned, you do risk being BANNED for sharing SCIENCE & COMMON SENSE :)
PLENTY OF OPEN ACCESS CONTENT ON DOGS HERE...... https://askanimalweb.com/tag/dog/
16/06/2026