( So ( , ( ( warm blood ) ( ( ( ( ( is not ) ( a ( shared ( , ( exclusive phylogeny ) ) ) ) ) , ) ( despite ( ( ( birds and ) humans ) ( sharing ( ( a ( deeper phylogeny ) ) ( of ( the ( ancestral reptile ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB So)) (, ,) (NP (JJ warm) (NN blood)) (VP (VBZ is) (RB not) (NP (DT a) (JJ shared) (, ,) (JJ exclusive) (NN phylogeny)) (, ,) (PP (IN despite) (NP (NP (NNS birds) (CC and) (NNS humans)) (VP (VBG sharing) (NP (NP (DT a) (JJR deeper) (NN phylogeny)) (PP (IN of) (NP (DT the) (JJ ancestral) (NN reptile)))))))) (. .)))
So, warm blood is not a shared, exclusive phylogeny, despite birds and humans sharing a deeper phylogeny of the ancestral reptile.
(ROOT (S (NP (NNP Phylogeny)) (VP (VBZ is) (NP (NP (DT the) (NN science)) (SBAR (WHNP (WDT that)) (S (VP (VBZ describes) (NP (NP (DT the) (ADJP (JJ ancestral) (CC and) (JJ descendant)) (NNS connections)) (PP (IN between) (NP (NNS organisms))))))))) (. .)))