( ( Canis ( lupus ( and ( Canis latrans ) ) ) ) ( ( ( ( ( are ( found ( on ( the ( same continent ) ) ) ) ) and ) ( are ( recognized ( as ( being ( two ( separate species ) ) ) ) ) ) ) ( even ( though ( they ( ( interbreed and ) ( produce ( fertile offspring ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Canis) (NNS lupus) (CC and) (NNPS Canis) (NNS latrans)) (VP (VP (VBP are) (VP (VBN found) (PP (IN on) (NP (DT the) (JJ same) (NN continent))))) (CC and) (VP (VBP are) (VP (VBN recognized) (PP (IN as) (S (VP (VBG being) (NP (CD two) (JJ separate) (NNS species))))))) (SBAR (RB even) (IN though) (S (NP (PRP they)) (VP (VP (VBD interbreed)) (CC and) (VP (VB produce) (ADJP (JJ fertile)) (VBZ offspring)))))) (. .)))
Canis lupus and Canis latrans are found on the same continent and are recognized as being two separate species even though they interbreed and produce fertile offspring.
(ROOT (S (SBAR (IN If) (S (NP (CD two) (NNS populations)) (VP (VBP do) (RB not) (VP (VB mate) (CC and) (VB produce) (NP (ADJP (JJ fertile)) (NN offspring)))))) (, ,) (NP (JJ separate) (NNS species)) (VP (VBP result)) (. .)))