They have prominent red protuberances and may have been named after the British redcoats.
( They ( ( ( ( have ( prominent ( red protuberances ) ) ) and ) ( may ( have ( been ( named ( after ( the ( British redcoats ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VP (VBP have) (NP (JJ prominent) (JJ red) (NNS protuberances))) (CC and) (VP (MD may) (VP (VB have) (VP (VBN been) (VP (VBN named) (PP (IN after) (NP (DT the) (JJ British) (NNS redcoats)))))))) (. .)))
They were named after the redcoats because they are the same bright red color on their bodies.
( They ( ( were ( ( named ( after ( the redcoats ) ) ) ( because ( they ( are ( ( the ( same ( bright ( red color ) ) ) ) ( on ( their bodies ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBD were) (VP (VBN named) (PP (IN after) (NP (DT the) (NNS redcoats))) (SBAR (IN because) (S (NP (PRP they)) (VP (VBP are) (NP (NP (DT the) (JJ same) (JJ bright) (JJ red) (NN color)) (PP (IN on) (NP (PRP$ their) (NNS bodies))))))))) (. .)))