( ( ( ( Rhinos , ) ( like ( ( most large ) ( land mammals ) ) ) ) , ) ( ( ( give birth ) ( to ( ( only ( one calf ) ) ( at ( a time ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNS Rhinos)) (, ,) (PP (IN like) (NP (ADJP (RBS most) (JJ large)) (NN land) (NNS mammals))) (, ,)) (VP (VBP give) (NP (NN birth)) (PP (TO to) (NP (NP (RB only) (CD one) (NN calf)) (PP (IN at) (NP (DT a) (NN time)))))) (. .)))
Rhinos, like most large land mammals, give birth to only one calf at a time.
(ROOT (S (NP (JJ Placental) (NNS mammals)) (VP (VBP give) (NP (NN birth)) (PP (TO to) (NP (ADJP (RB relatively) (JJ large)) (NNS fetuses)))) (. .)))