kitten brothers attacking

by claire
(brighton, UK)

i have 2, 4 month old kittens who are brothers and they do eerything together. The other day 1 of them got lost and was handed in to a cat rescue centre. I collected him the next day, and he seemed ok, perhaps not purring as much as normal but thought this was down to the stress of bing in a travel box etc. I got him home thinking his brother would be really pleased to see him, but he kept hissing at him and attacking him. Why is this? I thought it might be because the rescued kitten smelt a bit different as the rescue centre had a lot of free-roaming kittens. Can you explain this and will this phase pass? He was only missing for 1 day.

Answer by kate
yes it probably is due to the change in smell etc. This behavior will normally subside in a few days. It mayhelp to keep them a part for a day or so.