Episode available within Canada only.

Join an investigative journey around the world to uncover the mysteries of the most famous dinosaur super-predator: the Tyrannosaurus rex.

We begin near the Canadian border, in the badlands of Montana with Dr. Greg Wilson, where a T. rex fossil is pulled from the 65 million-year-old rocks. These bare bones provide the first glimpses of a real T. rex, but in Berlin, we find something special — a fully articulated skeleton. A T. rex ("Tristan") is revealed, and through CGI and other latest discoveries, scientists begin to fill in the gaps. 

In swampy landscapes of Alabama, paleontologist Dr. Gregory Erikson explores the power of T. rex's formidable jaws by comparing them to modern alligators. 

FROM THE FILM: The T. rex tooth looks like a blunt banana.

In a medical facility in Ohio, Dr. Lawrence Witmer uses CT scanners to look inside fossilized skulls and find the precise shape of T. rex's brain. He finds supersized sensory zones and surprising intelligence, very similar to that of a modern bird. With these new revelations, a picture of T. rex as a cunning hunter starts to emerge. But there is more to learn; the inner ear indicates that T. rex could hear infrasounds.

In a studio in Berlin, Dr. Julia Clarke debunks one of the biggest myths surrounding T. rex — it could not roar. Instead, it would have made deep, closed mouth vocalizations. Using the sounds of the closest living relatives to T. rex, scientists give T. rex a voice. 

Scotty: Canada’s home-grown Tyrannosaurus Rex is actually a female
Everything we thought we knew about T. rex is wrong
The fierce T. rex hunted in female-led packs

How did T. rex move? Armed with a drone, footprint expert Glen Kuban embarks on a prehistoric paddle in the rivers of Dino-State Park in Texas, where exposed dinosaur footprints form long trackways. Contrary to the belief of earlier scientists, T. rex was no taildragger. It held its tail high and walked like a bird. 

In the UK, biomechanics expert Dr. John Hutchinson combines the drone trackway data with locomotive data of flightless birds to work out just how fast T. rex could move. He reveals that the huge tail was not a drag but the source of T. rex's locomotive power — but that there were limits. By putting a virtual Tristan on a treadmill, he finds what happens when T. rex goes too fast.

Dr. Julia Clarke adds the final details to Tristan's appearance. Microscopic samples of fossilized dinosaur evidence of colouration provide a palette based on melanin, similar to modern birds of prey. Julia speculates that, like flightless birds today, feathers may have patterned its coat.

Just before Tristan is complete, we take a final a trip to Alberta, Canada, to meet legendary paleontologist, Dr. Phil Currie. He suggests that, based on the evidence of fossil bone beds, T. rex may have been a social predator that lived in a pride, like African lions. Inspired by this discovery, a feathery lion's mane is added to Tristan — before setting T. rex free — in all its monstrous glory!


Credits (Click to expand)

The Real T-Rex

Executive Producers
Glen Salzman (CDN-QC)
Martin Williams (UK)

André Barro (CDN-QC)
Ruth Roberts (UK)

Ruth Roberts (UK)

Mark Everest (UK)
Martin Williams (UK)

Matt Lowe (UK)

Edit Producer
Pete Chinn (UK)

Directors of Photography
Robert Vroom (CAN-QC)
Paul Williams (UK)
Hugh Campbell (UK)

Dr. Dave Hone (UK)

Original Music Composed by
Patrick Lavoie (CAN-QC)

Additional Music Provided By
Universal Production Music (UK)  

Assistant Producer
Dom Walter (UK)

Line Producer
Fiona McDonald (UK)

Production Managers
Martha Fernandez (CAN-QC)
Nicola King (UK)

Camera Operator
Victor Wong (CDN-BC)

Sound Recordists
Marco Fania (CDN-QC)
Nick Walker (UK)
Paul Keyworth (UK)

Camera Assistant
Yasmine Amor (CDN-QC)

Drone Operators
Alexander Mandiola (US)
Ryan Northcott (CAN-AB)

Post Production Supervisor
Devan Vimal (UK)

Katherine Jamieson (UK)

Online Editor
Rob Grainger (UK)

Assistant Editor
Luke Flight (UK)

Archive Producer
Jo Stones (UK)

Narration Polish By
Roberto Verdeccgio (CAN-ON)

Concept Artist
Gabriel Ugueto (VENEZUELAN)

VFX Producer
Barbara Rosenstein (CDN-QC) 

VFX Supervisor
Josh Sherrett (CDN-QC)
VFX Coordinator
Katie Hogan (CDN-QC)

VFX Artists
Julien Delorme (CDN-QC)
Samantha Fosado (CDN-QC)
Martin Garnier (CDN-QC)
Raúl Giménez (NON CDN-QC)
Zack Lamoureux (CDN-QC)
Ali Oukaci(CDN-QC)
Lucy Rybicka (CDN-QC)
Jeremiah Shaw (CDN-QC)

Sound Designer/Sound SFX Editor
Gabriel Boucher (CDN-QC)

Dialog Editor
Gaël Poisson Lemay (CDN-QC)

Re-recording Mixer
Jean-Pierre Bissonnette (CDN-QC)

Audio Post Coordinator
Isabelle Favreau (CDN-QC)

Special Thanks
Alligator Alley, Alabama (US)
Chris Packham (UK)
Dino Valley State Park, Texas (US)
Dry Island Buffalo Jump Provincial Park, Alberta (CAN-AB)
Florida State University (US)
Museum Für Naturkunde, Berlin (GER)
Ohio University Credit Union (US)
The Royal Tyrrell Museum, Alberta (CAN-AB)
Center for Biological Research Support UT-Austin (US)
Dr. Peter Falkingham (UK)
UFO Studios, Berlin (GER)
Woodbine Farms, UK (UK)

Stock Footage
BBC Motion Gallery/ Getty Images (UK)
Howard Hall Productions (USA)
Getty Images (UK)
Pond5 (USA headquarters- invoice issued in DUBLIN)
Retromedia Entertainment, Inc. (USA)
Shutterstock (International company, paid in GBP)

Director of Production for Talesmith
Ulla Streib (UK)

EVP, Production & Administration for Cineflix
Sherri Rufh (CDN-QC)

EVP, Post Production for Cineflix
Lynn Van Rooyen (CDN-ON)


General Manager, Programming
Sally Catto

Executive Director, Unscripted Content
Jennifer Dettman

Senior Director, Documentary
Sandra Kleinfeld

Director of Production, Unscripted Content
Alexandra Lane

Executive in Charge of Production
Sue Dando

Director of Finance, Unscripted Content
Julie Lawlor

The Nature of Things
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Produced by
Canadian Broadcasting Corporation


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