Why are there so many new, weird dinosaurs? Friend of the show Joel Werner goes down the rabbit hole, and finds a surprising answer. He speaks to paleontologists Dr. Steve Brusatte and Dr. Jonathan Tennant. Listen to Joel’s podcast The Sum Of All Parts here: https://ab.co/2YujtzU. Check out the transcript here: http://bit.ly/2Ts169i Science Vs will be back in September with a brand new season! UPDATE 8/13/19: We removed some lines suggesting that the reason that Joel and other people growing up in the 80s don't know about some dinosaurs, such as Spinosaurus and Edmontosaurus is because of the "Dino Explosion" in the 1990s. In fact, Spinosaurus was introduced in the scientific literature in 1915 and Edmontosaurus in 1917.  Credits: This story came from the podcast the Sum of All Parts which is produced and hosted by Joel Werner. Jonathan Webb is their science editor, sound design by Joel Werner and Mark Don. Additional fact checking by Lexi Krupp and additional music and engineering by Peter Leonard.