( ( Under ( ( the feathers ) is ) ) ( ( ( a layer ) ( of ( ( down and ) ( beneath ( the skin ) ) ) ) ) ( ( is ( ( a ( thick layer ) ) ( of ( fat ( for ( extra insulation ) ) ) ) ) ) . ) ) )
(ROOT (S (PP (IN Under) (NP (NP (DT the) (NNS feathers)) (VP (VBZ is)))) (NP (NP (DT a) (NN layer)) (PP (IN of) (UCP (ADVP (RB down)) (CC and) (PP (IN beneath) (NP (DT the) (NN skin)))))) (VP (VBZ is) (NP (NP (DT a) (JJ thick) (NN layer)) (PP (IN of) (NP (NP (NN fat)) (PP (IN for) (NP (JJ extra) (NN insulation))))))) (. .)))
Under the feathers is a layer of down and beneath the skin is a thick layer of fat for extra insulation.
(ROOT (S (NP (NP (DT The) (JJ thick) (NN skin)) (, ,) (VP (VBN found) (ADVP (RB only)) (PP (IN on) (NP (NP (NP (DT the) (NNS palms)) (PP (IN of) (NP (DT the) (NNS hands)))) (CC and) (NP (NP (DT the) (NNS soles)) (PP (IN of) (NP (DT the) (NNS feet))))))) (, ,)) (VP (VBZ has) (NP (DT an) (JJ extra) (NN layer))) (. .)))