Bunnies changing color

Question
Our black bunny had a white strip on her left side. This bunny got out of the yard and was missing for a week. When we got her back she now has more white around her neck and on the left side. I can tell she did not eat well and the temperature is very hot out side (110 degrees). She also has a cut on her lip like she might have been attacked by something. Would stress and or dehydration cause the changes? I am almost 100% sure it is the same bunny due to the area and other physical features. Also should I put her back in with the other bunnies right away?

Answer
Dear Micael,

This is very likely a different bunny.  Be extremely cautious about introducing her to other rabbits, as they will fight even a familiar bunny who has been away this long.  Please see:

http://search.atomz.com/search/?sp-a=00062824-sp00000000&sp-q=bonding

for tips on safe bonding.  Also note that the bunnies are NOT safe outdoors in this kind of heat, and they should be inside where it's cool and protected.  

I hope this helps.

Dana