( ( ( ( The use ) ( of ( circadian behavior ) ) ) ( to ( ( measure ( adaptation ( of calves ) ) ) ( to ( changes ( in ( their environment ) ) ) ) ) ) ) . )
(ROOT (NP (NP (DT The) (NN use)) (PP (IN of) (NP (NN circadian) (NN behavior))) (S (VP (TO to) (VP (VB measure) (NP (NP (NN adaptation)) (PP (IN of) (NP (NNS calves)))) (PP (TO to) (NP (NP (NNS changes)) (PP (IN in) (NP (PRP$ their) (NN environment)))))))) (. .)))
The use of circadian behavior to measure adaptation of calves to changes in their environment.
(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))))))))))))) (. .)))