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Bunny with hot ears- what does that mean?

i think i read somewhere that they moderate their body temperature through their ears, if Smudge is outside and it is cold his ears are colder; if i bring him in for cuddles they often get warmer. I dont think it is a cause for worry just a way of regulating their body temp....
 
Rabbits are homeothermic which means they regulate their own body temperature (like us). If they're in a cold environment, capillaries in the extremities (ears) constrict, keeping blood from flowing into them, thereby maintaining the core temperature. Conversely, on a hot day, the capillaries are opened to allow blood to the surface for the maximum cooling effect.
 
SkegMag said:
Rabbits are homeothermic which means they regulate their own body temperature (like us). If they're in a cold environment, capillaries in the extremities (ears) constrict, keeping blood from flowing into them, thereby maintaining the core temperature. Conversely, on a hot day, the capillaries are opened to allow blood to the surface for the maximum cooling effect.
Click to expand...

This :)

However, if bun's ears are extremely hot and bunny's body too then it can indicate that bun is either suffering from heat stroke (in summer) or has an infection and is running a temperature.
 
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