
Jack Horner
John Robert Horner (born June 15, 1946) is an American paleontologist most famous for describing Maiasaura, providing the first clear evidence that some dinosaurs cared for their young. In addition to his paleontological discoveries, Horner served as the technical advisor for the first five Jurassic Park films, had a cameo appearance in Jurassic World, and served as a partial inspiration for one of the lead characters of the franchise, Dr. Alan Grant. Horner studied at the University of Montana, although he did not complete his degree due to undiagnosed dyslexia, and was awarded a Doctorate in Science honoris causa. He retired from Montana State University on July 1, 2016, although he claims to have been pushed out of the Museum of the Rockies after having married an undergraduate student and now teaches as a Presidential Fellow at Chapman University.
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Known for
Filmography
6.7Everybody's Live with John Mulaney
2025 · TV · Self - On the Phone (voice) · 1 ep
7.8The Bones
2024 · Movie · Self
5.7Dinosaurs Decoded
2009 · Movie · Himself
4.5Dinosaurs: Return to Life?
2008 · Movie · Self
7.3Alien Planet
2005 · Movie · Self
5.0The Making Of Jurassic Park III
2001 · Movie · Self
7.0The Valley of the T-Rex
2001 · Movie
6.9The Making of 'The Lost World'
1997 · Movie · Self
10.0The Ultimate Guide: T-Rex
1996 · Movie · Self

The Ultimate Guide
1996 · TV
7.3The Making of 'Jurassic Park'
1995 · Movie · Self
7.0The Dinosaurs!
1992 · TV · Self - Commentor · 4 ep