These are the episodes and the evidence revealed in them. ===1
T. rex vs.
Triceratops=== Original air date: August 28, 2005 ====
Tyrannosaurus ==== • Evidence of head injuries on
Triceratops indicates
Tyrannosaurus rex attacked living
Triceratops. • Using a steel
Tyrannosaurus skull, scientists learned that
Tyrannosaurus could easily crush a
small car. • Scientists learn that
Tyrannosaurus could run at a maximum of . • Scanning an
endocast from
Tyrannosaurus's skull, scientists theorize that
Tyrannosaurus had a brain similar to that of a modern-day alligator. •
Tyrannosaurus had good
vision, and a good sense of smell. •
Tyrannosaurus could bite through bone, at a bite force of at least four tons per square inch. ====
Triceratops ==== • Doing a
crash test with an artificial
Triceratops skull, made of
resin, scientists learn that, contrary to portrayals in the media,
Triceratops probably did not charge at predators nor other dinosaurs, for its skull would likely break. •
Triceratops may have gored its predators. •
Triceratops was slower () than
Tyrannosaurus, but more agile.
Outcome An even match. In the episode, it is shown that if the
Tyrannosaurus makes a surprise attack, it might kill the
Triceratops, but if the herbivore discovers the trap, it could beat his opponent and kill it. Outcome 1: (Winner,
Tyrannosaurus) The
T. rex is seen stalking the
Triceratops. It suddenly runs out of hiding, and being faster, it overtakes the
Triceratops. The
T. rex bites into the
Triceratops' neck, knocks it over, and eats it. Outcome 2: (Winner,
Triceratops) The
T. rex is wandering through the forest looking for food. It soon comes across two fighting
Triceratops. When the two are done fighting, the
T. rex singles out one of them as a potential target. After picking its victim, the
T. rex charges, but the
Triceratops sees it just in time and turns around to face its attacker. The
T. rex seizes the horn of the
Triceratops and breaks it off. The herbivore tries to retreat, but the
T. rex chomps on the
Triceratops' frill. After doing a mock charge, the
Triceratops slashes its horns into the ''T. rex's
belly. The T. rex
limps away, falls down, and slowly dies. The Triceratops'' watches it die and then goes back to foraging. ===2
Velociraptor vs.
Ankylosaur=== Original air date: September 4, 2005 ====
Velociraptor ==== •
Velociraptor was only the size of a turkey. •
Velociraptor had
feathers. • A
robotic Velociraptor leg provides evidence that
Velociraptor did not
disembowel its prey. • The fossil of a
Velociraptor fighting a
Protoceratops shows that the
Velociraptor pierced the neck of its prey, possibly to stab the vital
arteries or the
jugular vein. •
Velociraptor's arms were used for balance and agility, much like the wings of an
ostrich. • Along with its claws,
Velociraptor's teeth were useful weapons. •
Velociraptor most likely hunted in small packs. • Teeth of this dinosaur were found among its victims. • The biomechanical claw provides evidence that the
Velociraptor could not penetrate the ankylosaur's
armour; it broke when tested on a
crocodile's skin. ====
Ankylosaur==== • Ankylosaur
armour was similar to a crocodile's, though significantly harder. • Young crocodiles have no armour, especially on the neck. Baby ankylosaurs were probably similar. • A robotic ankylosaur tail shows that the tail club could break wood and bone with ease. • This dinosaur's armour and club was used only on more threatening predators than
Velociraptor. • In the U.S. version, it was known as
Ankylosaurus, although
Ankylosaurus itself lived in North America. The ankylosaur in question may in fact have been
Pinacosaurus as hinted by the fossil specimen of multiple young that is seen briefly.
Outcome The ankylosaur would win, although
Velociraptor could easily kill young ankylosaurs, which have easily penetrable armor. Outcome 1: (Winner, ankylosaur) The ankylosaur is being harassed by two
Velociraptors. They try to attack it multiple times, but its armor proves too thick. The ankylosaur eventually drives them away by swinging its tail (one blow would have killed one of the
Velociraptors). Outcome 2: (Winner,
Velociraptor) The mother ankylosaur is grazing and her young browse very close to her to avoid danger, but one of them wanders off to an unsafe distance. Two
Velociraptors lay a trap around the baby; one of them bursts out of cover to stampede the baby, and the baby escapes the
Velociraptor, only to be driven into the clutches of the other one. The two
Velociraptors attack the baby, slashing with their claws. The baby tries desperately to defend itself with its tail, but it is inexperienced and is quickly overwhelmed. One of the
Velociraptors drives a claw into the baby's neck, killing it. The two
Velociraptors have the baby as a meal. == Minor appearances ==