. I keep BRBs of the same sex together two to a cage. I have never witnessed any agression except for "shoving matches" between males during breeding season. If you will scroll down to posts from several weeks back you will find a post that does descibe an incident of one BRB killing another. Snakes are interesting animals and they sometimes do interesting things. There are reported incidences of fights and cannibalism in many dozens of snakes from species that are not generally known to be cannibalistic. I have never had a male BRB younger than 29 months make any attempt to breed. Are you sure your male is actually trying to mate with the female? Many people say that snakes should be kept one to a cage. They make the reasonably good arguements that accidents can and do occasionally happen, if snakes are sharing a cage and one is sick it will pass it to the other, if one is passing messy stools you may not be able to tell which one it is and start early treatment of the problem, etc.
YMMV,
Jeff
>>I have a yearling male that's starting to turn into a really nice looking BRB and I have a yearling female that I'd like to house with him. I've put her in his cage a few times to see how they behave themselves. Neither one seems aggressive, but the male keeps following her around and trying to mate with her. She is very disinterested (she's only a yearling after all ) and either moves away from him or ignores him. I'm worried about this because I'm wondering if one or the other might get aggressive about it and start a fight. What do you guys think?