( ( ( ( ( A survey ) ( of ( current theories ) ) ) ( in ( ( ( ( ( evolution , ) ( mass extinctions ) ) , ) and ) loss ) ) ) ( of ( ( biodiversity ( due ( to habitat ) ) ) collapse ) ) ) . )
(ROOT (NP (NP (DT A) (NN survey)) (PP (IN of) (NP (JJ current) (NNS theories))) (PP (IN in) (NP (NP (NN evolution)) (, ,) (NP (JJ mass) (NNS extinctions)) (, ,) (CC and) (NP (NN loss)))) (PP (IN of) (NP (ADJP (RB biodiversity) (JJ due) (PP (TO to) (NP (NN habitat)))) (NN collapse))) (. .)))
A survey of current theories in evolution, mass extinctions, and loss of biodiversity due to habitat collapse.
(ROOT (S (NP (NP (ADJP (JJ Sudden) (CC and) (JJ dramatic)) (NNS losses)) (PP (IN of) (NP (NN biodiversity)))) (VP (VBP are) (VP (VBN called) (NP (JJ mass) (NN extinction)))) (. .)))