( ( Aquatic species ) ( rarely ( ( ( display ( any ( particular specializations ) ) ) ( for jumping ) ) . ) ) )
(ROOT (S (NP (JJ Aquatic) (NNS species)) (ADVP (RB rarely)) (VP (VBP display) (NP (DT any) (JJ particular) (NNS specializations)) (PP (IN for) (S (VP (VBG jumping))))) (. .)))
Aquatic species rarely display any particular specializations for jumping.
(ROOT (S (NP (NNP Overharvesting)) (VP (VBZ is) (NP (DT a) (JJ serious) (NN threat)) (ADVP (RB particularly)) (PP (TO to) (NP (JJ aquatic) (NNS species)))) (. .)))