( They ( also ( ( eat ( ( ( ( ( large insects ) and ) ( small mammals ) ) , ) ( such ( as rats ) ) ) ) . ) ) )
(ROOT (S (NP (PRP They)) (ADVP (RB also)) (VP (VBP eat) (NP (NP (NP (JJ large) (NNS insects)) (CC and) (NP (JJ small) (NNS mammals))) (, ,) (PP (JJ such) (IN as) (NP (NNS rats))))) (. .)))
They also eat large insects and small mammals, such as rats.
(ROOT (S (NP (JJ Placental) (NNS mammals)) (VP (VBP give) (NP (NN birth)) (PP (TO to) (NP (ADJP (RB relatively) (JJ large)) (NNS fetuses)))) (. .)))