( ( The observation ) ( ( was ( that ( ( ( the pleurobanchea ) ( like ( any ( other animal ) ) ) ) ( follows ( ( the ( Harvard Law ) ) ( of ( ( Animal Behavior ) ( which ( predicts ( the ( animal ( to ( act ( however ( it ( chooses ( at times ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN observation)) (VP (VBD was) (SBAR (IN that) (S (NP (NP (DT the) (NN pleurobanchea)) (PP (IN like) (NP (DT any) (JJ other) (NN animal)))) (VP (VBZ follows) (NP (NP (DT the) (NNP Harvard) (NNP Law)) (PP (IN of) (NP (NP (NNP Animal) (NNP Behavior)) (SBAR (WHNP (WDT which)) (S (VP (VBZ predicts) (NP (DT the) (NN animal) (S (VP (TO to) (VP (VB act) (SBAR (WHADVP (RB however)) (S (NP (PRP it)) (VP (VBZ chooses) (PP (IN at) (NP (NNS times)))))))))))))))))))) (. .)))
The observation was that the pleurobanchea like any other animal follows the Harvard Law of Animal Behavior which predicts the animal to act however it chooses at times.
(ROOT (S (NP (PRP We)) (VP (VBP call) (ADVP (DT any) (NN way) (SBAR (IN that) (S (NP (NNS animals)) (VP (VBP act))))) (, ,) (S (UCP (DT either) (ADVP (RB alone)) (CC or) (PP (IN with) (NP (NP (JJ other) (NNS animals)) (, ,) (NP (NN animal) (NN behavior))))))) (. .)))