A succession of discoveries has taught us about archeabacteria, very ancient and primitive single-cell organisms that live in the places you'd least expect anything to call home.
( ( ( A succession ) ( of discoveries ) ) ( ( has ( ( taught us ) ( about ( ( ( ( archeabacteria , ) ( very ancient ) ) and ) ( ( primitive ( single-cell organisms ) ) ( that ( live ( ( in ( the places ) ) ( you ( ( 'd least ) ( ( expect anything ) ( to ( call home ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN succession)) (PP (IN of) (NP (NNS discoveries)))) (VP (VBZ has) (VP (VBN taught) (NP (PRP us)) (PP (IN about) (NP (NP (NN archeabacteria)) (, ,) (NP (RB very) (JJ ancient)) (CC and) (NP (NP (JJ primitive) (JJ single-cell) (NNS organisms)) (SBAR (WHNP (WDT that)) (S (VP (VBP live) (SBAR (S (PP (IN in) (NP (DT the) (NNS places))) (NP (PRP you)) (VP (MD 'd) (ADVP (JJS least)) (VP (VB expect) (NP (NN anything)) (S (VP (TO to) (VP (VB call) (NP (NN home))))))))))))))))) (. .)))
Several discoveries have taught us about archaebacteria, a very ancient and primitive single-cell organism that lives in unexpected places. 
( ( Several discoveries ) ( ( have ( ( taught us ) ( about ( ( archaebacteria , ) ( ( a ( ( very ( ( ancient and ) primitive ) ) ( single-cell organism ) ) ) ( that ( lives ( in ( unexpected places ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Several) (NNS discoveries)) (VP (VBP have) (VP (VBN taught) (NP (PRP us)) (PP (IN about) (NP (NP (NN archaebacteria)) (, ,) (NP (NP (DT a) (ADJP (RB very) (JJ ancient) (CC and) (JJ primitive)) (JJ single-cell) (NN organism)) (SBAR (WHNP (WDT that)) (S (VP (VBZ lives) (PP (IN in) (NP (JJ unexpected) (NNS places))))))))))) (. .)))