Yesterday while cleaning some cages i put my 4 foot argentine female in with a 5 foot male. The argie had eaten a little while before. I went out side to hose some stuff out and when i came back in the male was constricting the female trying to kill her. He must have smelled the rat on her or something. I was able to seperate them in time but the female has some nice bite marks. I am just glad i cought them in time. I know now not to put snakes together after one just finished eating