( ( ( Circadian ( , ( cicatidal ( , ( and ( circannual rhythms ) ) ) ) ) ) ( em pha ) ) ( sized . ) )
(ROOT (S (NP (ADJP (JJ Circadian) (, ,) (JJ cicatidal) (, ,) (CC and) (JJ circannual) (JJ rhythms)) (NN em) (NNS pha)) (VP (VBD sized)) (. .)))
Circadian, cicatidal, and circannual rhythms em pha sized.
(ROOT (S (NP (JJ Circannual) (JJ behavioral) (NNS rhythms)) (VP (VBP are) (VP (VBN linked) (PP (TO to) (NP (NP (DT the) (JJ yearly) (NN cycle)) (PP (IN of) (NP (NNS seasons))))))) (. .)))