Season 23, Episode 3 Dinosaur Wars

First Aired: January 17, 2011

A recounting of the professional rivalry between 19th-century American paleontologists Othniel Charles Marsh and Edward Drinker Cope, who collectively discovered dozens of prehistoric animals and 130 dinosaur species, including brontosaurs, stegosaurs and allosaurs. The pair's dislike of each other evolved over time, and included sniping at each other in scientific articles, espionage and the destruction of fossils.

Watch Now
Paid

Cast & Details See all »

  • Premiered: October 4, 1988
  • Rating: TV-PG
  • Premise: This much-honored PBS documentary series explores American history, one topic or person at a time. Its Peabody Award winners include profiles of FDR and Malcolm X, and such diverse topics as Nixon's 1972 trip to China, the controversy surrounding `Citizen… (more)

Show More »

Watch This

I. Marlene King and Troian Bellisario
Troian Bellisario recalls her wildest PLL fan encounters

The Pretty Little Liars star and creator recall their wildest -- and sometimes incredilbly uncomfortable -- encounters with fans