Photo taken by drone to study territorial behaviors of tyrannosaurs between different strains.

About this image

Test subjects: Female Tyrannosaur Gamma strain (seen on the left of the picture , Male Tyrannosaur Beta strain (seen on the right)
Test location: Research fascility H2
Test: Behavior of tyranosaurs when interacting with other strains
Summary of the events of the test:
Both Tyrannosaur specimens were dropped into the Test Habitat after a few minutes the two specimens had encountered eachother The Beta strain Male Tyrannosaur which will now be referred to as B.Rex, The B.rex immediatly snapped it's jaws at the Female Gamma strain Tyrannosaur, (This was unexpected behavior since most large theropods never directly attacked other large theropods.) In response to the attack the Female Tyrannosaur released a booming roar most likely to frighten The B.rex male shortly after this The Female Tyrannosaur bit into the B.rex's shoulder this resulted in the B.rex biting and scratching the Female Tyrannosaur's neck, Torso and hip aswell as it's head and shoulder. The two test subjects then circled around eachother for a short amount of time then both subjects ran at eachother colliding and then scratching and biting at eachother after a few more minutes of fighting the B.rex ran away the Female Tyrannosaur proceeded to chase the Male into the boreal forest area of the habitat effectively cornering it. After that the B.rex went for the Females throat, this proved to be a fatal mistake as the Female swiftly locked it's jaws around the B.Rex's neck. Killing it in a matter of seconds.
Researcher's Notes:
The peculiar thing about this test is  that Male and Female Tyrannosaurs typically don't attack eachother this could be a result of the Beta strain being much more aggresive than the newer Gamma strain but further research would be required to prove or disprove this theory.

Result: No further testing on Tyrannosaur territorial behaviors have been authorized due to the fact that the cost of a single tyrannosaur specimen is way too high to waste for testing procedures that could potentially result in death.