( ( Yellow-faced bumblebees ) ( , ( ( like ( most bumblebees ) ) ( , ( ( ( use ( thermoregulation ( to ( maintain ( stable ( body temperatures ) ) ) ) ) ) ( ( several degrees ) ( above ( the ( ambient temperature ) ) ) ) ) . ) ) ) ) )
(ROOT (S (NP (JJ Yellow-faced) (NNS bumblebees)) (, ,) (PP (IN like) (NP (JJS most) (NNS bumblebees))) (, ,) (VP (VBP use) (ADJP (JJ thermoregulation) (S (VP (TO to) (VP (VB maintain) (NP (JJ stable) (NN body) (NNS temperatures))))))) (NP (NP (JJ several) (NNS degrees)) (PP (IN above) (NP (DT the) (JJ ambient) (NN temperature)))) (. .)))
Yellow-faced bumblebees, like most bumblebees, use thermoregulation to maintain stable body temperatures several degrees above the ambient temperature.
(ROOT (S (NP (NNP Thermoregulation)) (VP (VBZ is) (NP (NP (DT the) (NN process)) (SBAR (WHNP (WHADVP (WRB when)) (NNS animals)) (S (VP (VBP maintain) (NP (DT an) (JJ internal) (NN temperature))))))) (. .)))