( ( When ( ( ( ( the ( environment changes ) ) and ) ( the ( adaptive ( ( characteristics or ) behaviors ) ) ) ) ( are insufficient ) ) ) ( , ( ( the species ) ( ( becomes extinct ) ... ) ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (NP (DT the) (NN environment) (NNS changes)) (CC and) (NP (DT the) (JJ adaptive) (NNS characteristics) (CC or) (NNS behaviors))) (VP (VBP are) (ADJP (JJ insufficient))))) (, ,) (NP (DT the) (NNS species)) (VP (VBZ becomes) (ADJP (JJ extinct))) (: ...)))
When the environment changes and the adaptive characteristics or behaviors are insufficient, the species becomes extinct ...
(ROOT (S (NP (JJ Learned) (NN behavior)) (VP (VBZ is) (ADJP (JJ adaptive)) (SBAR (IN because) (S (NP (PRP they)) (VP (VBP are) (ADJP (JJ flexible)) (, ,) (S (ADJP (JJ capable) (PP (IN of) (S (VP (VBG changing) (SBAR (IN if) (S (NP (DT the) (NN environment)) (VP (VBZ changes))))))))))))) (. .)))