Flipthroat Radwalker

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Overtime, some populations of big walkers shifted away from feeding on fluids and returned to a more solid diet. Alongside several other changes in anatomy and in behavior, their adaptations to consume whole prey led to them becoming a unique taxon.

The Flipthroat Radwalker has some major changes from their ancestor, the first one being the significantly shorter legs and tail. Additionally, the thin spiky feet of their ancestors have turned into hoof-like claws to both better support their weight and to provide traction as they move around. This makes them far more competent in locomotion compared to their ancestor or the adults of their relatives, but they are still not exactly good at making sharp turns and running quickly puts large amounts of strain on their thin limbs. The plates on the upper tail have unfused and slightly reduced in size so the overall structure has more flexibility since the Flipthroat Radwalker does have a more active lifestyle than their ancestor. The Flipthroat Radwalker has switched towards hunting relatively small terrestrial prey such as the Radrake or young Liserlaps instead of aerial prey, but this meant their giant radiation cannon was more awkward to aim in a chase. To make up for this, the Flipthroat Radwalker has become a cooperative hunter, though it is nowhere near as organized as the packs of Big walker 2 nymphs. Instead, Flipthroat Radwalkers hunt together out of opportunism, as they will use their radiation organ to shoot lasers near fleeing prey to cut off escape routes and try to bring it towards them. Sometimes the laser may strike a direct hit and kill the prey, which makes things easier, but more often than not the victim will instead run into a Flipthroat Radwalker and get pinned down by the front limbs. The small ring of claws present on the forelimbs have turned into three large taloned fingers that help pin down a target and 2 small dew claws. The two hind limbs that were once heavily reduced have grown back in size for several reasons, the first being it allows them to better reach down and pick up the struggling creature and bring it towards their mouth and within range of a newly developed structure.

Unlike their immediate ancestor, the Flipthroat Radwalker has lost its proboscis, with the mouth now being able to fully open and close once more although they still have extremely large cheeks that stick out of the mouth when it is closed. The most extreme difference from their ancestor, however, is the highly derived throat muscles. The Flipthroat Radwalker has a large throat pouch, which can be used to lose heat and communicate with their own kind, but has primarily evolved for one reason alone. This all comes together with the throat muscles pushing the whole structure inwards and upwards, creating a sort of "tongue", which has evolved a couple times in other radfauna like Liserlaps. Unlike other radfauna, however, this "tongue" is extremely long and mobile, being the most derived in any radfauna seen thus far. This structure will wrap around prey as the Flipthroat Radwalker will then point its head skywards as the structure then inverts. Combined with the whole pouch reverting to its original position and the aid of gravity, the sometimes still alive prey is helplessly pulled down the creature's throat. Such a meal will, however, not got uninterrupted since swallowing the whole thing in one go means only one Flipthroat Radwalker from the loose gang will typically get to eat whatever they catch and obviously every individual wants it to be them who gets to eat. As such, several Flipthroat Radwalkers will gang up on the individual who has caught the small creature to push them away so they can have the meal for themselves. During such fights, these Radwalkers will often smack their heads into the more successful predator's side or alternatively use their large hind limbs to smack the legs of their opponent. Sometimes these fights get so chaotic that all members of the gang get so busy trying to establish who gets to eat and literally forget about subduing the prey in the first place, allowing the small fauna to sometimes escape unnoticed. Their lack of any structures to effectively dismember prey limits the Flipthroat Radwalkers to preying upon things they can actually get down their throats, hence why these fights even exist.

While they young still bud from the hind limbs as the anus is still at the base of the tail, they have taken it in a very bizarre direction. The small bud of flesh that grows on their inner thigh quickly balloons in size and becomes a sort of sac, where the developing youngster grows and takes a more developed form. Within 4 months, the two bud-sacs(one on each hind limb) will detach from their parent and fall to the ground. The young will rip their way out of the sac and resemble miniature versions of the adults, being about a quarter of their adult size. This larger size means the young can hunt relatively decently sized prey from the get-go and thus gives them an extra boost in survival.

A Flipthroat Radwalker with its throat pouch fully inverted and jaws fully agape, displaying the large "tongue" the predator possesses.