Tyrannosaurs Ecology
T he great ones! All who believe themselves powerful need only to gaze upon them and know folly. For no creature aside from dragons can match their strength, speed, and cunning! - Lizard Folk shaman referring to the revered Tyrannosaurus
Introduction
Tyrannosaurus Rex or T-Rex, for short, is a massive bipedal lizard-like animal. They are ferocious carnivores and dangerous to all creatures, even dragons, if caught unaware. These huge predators roam their territories, protecting their claim and devouring food when it pleases them. King of lizards is an apt name.
Physiological Observations
Origins
Their enormous size and power give many ecologists pause when considering the similarities to dragons. The groups of lizards, known as dinosaurs, have always been classified as distinctly different from dragons. Now that seems to be an incorrect observation when looking upon a T-rex. Dinosaurs were possible predecessors to the Dragon kind and even Hydra as all seem to be familiar in sorts. It is uncertain, and no dragon would admit such a base claim in their eyes.
Identifying a T-Rex
A T-Rex stands on two long legs at the center of mass to their large 40 foot long bodies. Their massive heads resemble a hornless dragon sporting rows of sharp and huge teeth. They stand with their heads and bodies parallel to the ground at around 18 feet tall. They are powerfully strong monstrosities with thickly muscled jaws, sturdy necks, fast legs, and powerful thick and dangerous tails.
Keen Senses
The large head of a T-Rex has forward-facing eyes that, while looking small in proportion to the head, are excellent for depth perception. They are very perceptive when it comes to sight and smell. T-Rexes can see somewhere between an elf or a human, and the ability to smell can rival that of a hound. Their massive jaws sport up to 6 inch long teeth all made for tearing large chunks of flesh. Their ability to smell is probably the most impressive. They can track older than week old trails only by smell alone. Escape from a T-Rex seems only temporary.
Tooth and Claw
Their powerful necks give them incredible strength even for a creature their size and ability to carry multiple tons in their mouths with ease. They have tiny yet powerful arms just past the base of the neck. While the arms seem vestigial, they use them in grasping prey or mates. Their hook-like claws are hard to extract, and their small size makes the arms incredibly durable and efficient at holding fast.
Not so Lumbering
Despite being enormous creatures, they are incredibly fast. Able to run as quickly as any horse, chasing down prey or enemies with surprising speed is well within their capabilities. Their tails are mostly used as a counterbalance while flexibly extending straight outwards from the hindquarters and only drooping down at the very end. When not used for balance, they can make a devastating swipe powerful enough to level buildings. Both legs and tail are incredibly strong, and a T-Rex is dangerous from all directions, not just in the reach of their maw.
Eating Habits
A T-Rex is a violent carnivore that eats large chunks or whole creatures. They can bite and swallow a human-sized creature with relative ease. Any more massive animals they pin with one leg and pull large portions of meat off with their clamping jaws. The site is gruesome to behold. Reports of starving T-Rex subsisting off of carrion exist, but it seems they are more than capable of hunting and only doing so in desperation. Any amounts of bone or materials too hard to be digested are regurgitated much like an owl pellet hours later. Well-fed T-Rex territories are marked by occasional piles of bones teeth and even weapons and armors.
Hunters
When hunting, they sniff out prey and follow the tracks to their intended target. Often good enough, they can trot until their destination until stealth is needed. Once prey is spotted, they work hard to get as close as possible without alerting to their presence. They hunch down on their bellies and softly crawl on all 4 until they explode into a leap running full speed at their target. If discovered, they will also explode into a run at their prey. Usually, they can outrun their prey and easily catch them, but the least amount of energy spent possibly the better.
They need to eat a lot to satisfy their hunger, but they only need to eat 1 time a week. They will eat up to 2 tons of food if they can manage, thus preferring larger prey. They can subsist off of smaller prey, but it requires more work and more often.
Habitat and Home
They mostly inhabit hilly moderately warm climates with open spaces for running down prey. They tend to nest in copses of trees in the rolling hills for cover. A T-Rex territory is usually in a 20-mile radius, giving a lot of room for prey to live with never seeing their domain’s king. Massive territories not only allows for an ample amount of food for a T-Rex but also doesn’t inspire every living creature to run from a new T-Rex territory.
Intra-Specie Observations
Battle Tactics
As more than capable fighters of more massive creatures, they favor bludgeoning with their tales to knock foes off balance and go for a devastating kill by tearing out enormous swaths of flesh. Cocky unaware dragons have been decapitated, underestimating a hungry Rex. When fighting smaller creatures, they sweep with their tails and snatch up prone victims in their jaws devouring them. When they fight, they are very vocal and loud. Their roars rival that of any dragons, and they will do so with every opportunity. Constant roaring seems to be a defense mechanism. They make as much noise as possible in an attempt to intimidate an attacker into running. If they run a T-Rex will catch them.
When attacked or fighting for reasons outside of food, they still eat their foe, which is probably a sign of dominance. They will not devour the opponent but will eat things like the head arms and legs stripping weapons and other perceived valued appendages away—odd behavior for creatures with little intelligence outside of battle.
Variants
There are different kinds of Tyrannosaurs roaming the lands, and each is dangerous, and I advise to avoid them.
Tyrannosaurus Majoras
Tyrannosaurus Majoras is the T-Rex described above. They range from dark greens and browns to soft yellows in color. They typically look much like the primary color of the vegetation in the fields for better sneaking up on prey. They prefer plains and hills with small outlooks of trees. The male’s heads will appear a softer blue in contrast to the rest of the body.
Tyrannosaurus Sauronious
Sauronious is a dangerous variant of T-Rex that inhabit more tropical regions of the world. They are never docile as they never cease in hunger. They roam the tropics stripping prey as they go. These variants typically run in mated pairs as both sexes are always on the hunt for food. They are bright yellows with purple or green accents and can roar so profoundly it will concuss foe and prey to the ground. The males are still slightly smaller but bear no significant markers. Their roars are far more powerful and cause physical harm, although not much information exists, as survivors are non-existent.
Tyrannosaurus Diabolis
Tyrannosaurus Diabolisis arguable the most bizarre variant of T-Rex. They are red and black in scale color and have outright immunity to fire. Living and thriving in extreme heat and volcanoes Diabolis are extremophiles. They enjoy meat but sustain mostly on rocks and lava. They seem to regurgitate fire in wads of a flaming pitch at prey preferring charred meat. They occasionally run across Sauronious, and devastating battles occur. They live together in closer colonies of up to 10 members sustaining their numbers with young. They only live in areas around or in volcanic activity.
Tyrannosaurus Freezanis
This Tyrannosaurus type is by far the rarest. They’ve developed their scales into thick down like feather coats keeping them warm in polar climates. Besides their black skin and white layers of fur, they are closest to Majoris in lifestyle aside from the environment. In the summer, they do shed their feathers to reveal their shining obsidian scales, but as those days of slight heat are short, they soon sprout new coats of ivory feathers.
DM’s Toolbox
Tyrannosaurs are an iconic dinosaur. This interpretation uses the most real-world creature for the behaviors believed to be accurate according to more recent studies. You, as the DM, have the discretion to make them opportunistic predators that frequently feed off carrion as catching prey is harder than the previously accepted theory.
Here are a few scenarios to use a T-rex.
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Ambush predator of extreme danger
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stalked by dangerous predator stuck on an island time forgot
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A dragon thought to have been living nearby found with it mutilated and mostly eaten what creature could do such a thing?
Thanks For Reading
As always, thanks for reading!
Edit for formatting May 2020
Thanks for Reading my 11th Ecology