( ( Unless ( ( ( an ( animal 's ) ) behaviors ) ( are ( relatively advantageous ) ) ) ) ( , ( ( ( the ( animal 's ) ) genes ) ( ( ( will not ) ( continue ( to exist ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Unless) (S (NP (NP (DT an) (NN animal) (POS 's)) (NNS behaviors)) (VP (VBP are) (ADJP (RB relatively) (JJ advantageous))))) (, ,) (NP (NP (DT the) (NN animal) (POS 's)) (NNS genes)) (VP (MD will) (RB not) (VP (VB continue) (S (VP (TO to) (VP (VB exist)))))) (. .)))
Unless an animal's behaviors are relatively advantageous, the animal's genes will not continue to exist.
(ROOT (S (NP (NNP Animal) (NNS behaviors)) (VP (VBP are) (VP (VBN controlled) (PP (IN by) (NP (NP (DT both) (NNS genes) (CC and) (NNS experiences)) (PP (IN in) (NP (DT a) (VBN given) (NN envionment))))))) (. .)))