BTW, the rule about the Breed card was kind of hidden. Maybe in the rules you could break it into it's own section like the Options card rules? Didn't seem so bad to me (except that now I see it could be Capitalized).
Two sentences: For the players whose hunting parties won the Option card, they get to choose one of the available option cards lined up on the side of the table. To the player whose hunter party won the breeding card, they get to draw a Spear card from the face down draw pile and add it to their band.
It is sort of like the Option card, except that it produces one direct outcome rather than a choice.
see also Simple Game Overview