Research overview: coat colour, thermal load, and the physiology of dark versus light fur

Coat colour can affect heat balance, and this overview reviews how dark and light fur interact with thermal load in cats. Darker coats absorb more solar radiation and may warm faster in sun, while lighter coats reflect more, and the net effect on the animal depends on coat structure, wind, and behaviour, making the relationship between colour and temperature more complex than it first appears. Researchers study this through thermal measurement and physical reasoning. Why it matters: the link between coat colour and thermal load touches on how cats of different colours and climates manage heat, and it intersects with camouflage and other selective pressures on coat colour. Understanding it shows that coat colour is shaped by multiple, sometimes competing demands, of which thermoregulation is one, alongside concealment and signalling.