( ( ( ( ( ( Most ( bony fishes ) ) ( are ( ( ( ectothermic , ) or ) cold-blooded ) ) ) , ) but ) ( ( this species ) ( , ( ( much ( like ( the ( related tunas ) ) ) ) ( , ( ( ( is endothermic ) and ) ( is ( able ( to ( ( raise ( its ( body temperature ) ) ) ( to ( achieve ( ( a degree ) ( of thermoregulation ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (JJS Most) (NN bony) (NNS fishes)) (VP (VBP are) (ADJP (ADJP (JJ ectothermic)) (, ,) (CC or) (ADJP (JJ cold-blooded))))) (, ,) (CC but) (S (NP (DT this) (NNS species)) (, ,) (ADVP (RB much) (PP (IN like) (NP (DT the) (VBN related) (NNS tunas)))) (, ,) (VP (VP (VBZ is) (ADJP (JJ endothermic))) (CC and) (VP (VBZ is) (ADJP (JJ able) (S (VP (TO to) (VP (VB raise) (NP (PRP$ its) (NN body) (NN temperature)) (S (VP (TO to) (VP (VB achieve) (NP (NP (DT a) (NN degree)) (PP (IN of) (NP (NN thermoregulation)))))))))))))) (. .)))
Most bony fishes are ectothermic, or cold-blooded, but this species, much like the related tunas, is endothermic and is able to raise its body temperature to achieve a degree of thermoregulation.
(ROOT (S (NP (NNP Ectothermic)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (NNS animals)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (RB not) (VP (VB raise) (NP (PRP$ their) (NN body) (NN temperature)) (PP (IN on) (NP (PRP$ their) (JJ own))))))))))) (. .)))