The degree of relatedness of the orphan and surrogate mother for adoption to occur depended on the number of pups the surrogate mother already had in her nest, as this affected the cost of adoption.
O grao de parentesco do orfo e a nai surrogada para que ocorra a adopción dependía do número de crías que a nai surrogada xa tiña no seu niño, xa que isto afectaba ao custo da adopción.