Why can Free Pal Alliance members and Rayne Syndicate members be seen attacking their own teammates? Well, some reasons are detailed below.
For the Rayne Syndicate members, it's likely a conflict over who gets to take the Pal or a turf war.
For the Free Pal Alliance Members, their cause is probably ideological conflicts between those who believe in Lily Everhart's vision and those who poach Pals to pay for PIDF assistance.
Why is Mossanda so light compared to their size and build? Like their name suggests, they're moss-based. They likely could have traits of moss spores or spore pods, and moss spores are very lightweight.
Despite its Paldeck entry showing how cruel it can be to baby/orphaned Pals, Nitewing is non-aggressive and will only retaliate when attacked. That's likely the exact reason why it raises and fattens up Pals to hunt down — Nitewing is too weak to fight healthy and combat-ready wild Pals who appear in groups and will fight to the death, so it prefers to hunt down something that would be alone, unfit for combat and hesitant because of seeing it as a parent.
Nitewing's name has a very ironic ring to it as it looks similar to and sounds like Nightwing (aka Dick Grayson), an orphan that Batman took in and raised. Like Batman did with Dick Grayson, Nitewing does take in Pals to raise them... but unlike the Caped Crusader, Nitewing then hunts down its raised Pals.
Lovander's drops of Strange Juice, Suspicious Juice, Memory Wiping Medicine, cake, and mushrooms seem odd when other Pals drop raw materials and not crafted items, but notice that Lovander has level 2 handiwork and level 2 medicine production. It likely crafted those items — the juices for drugging its targets and the cake for breeding. The mushrooms were likely raw materials it was holding.
Astegon's Partner Skill is called Black Ankylosaur, yet the Pal doesn't look like anything remotely resembling an Ankylosaurus. However, Ankylosaurus is Latin for "fused lizard", and Astegon just so happens to look like it's made of metal plates fused together.
Anubis has a Handiwork (Crafting) skill of 4 because they were originally from a game called Craftopia.
The breeding combo for Faleris is Anubis and Vanwyrm. This seems odd until one realizes that Faleris' Japanese name is Horus, which makes the combination more sensible since Anubis and Horus are both gods from Egyptian Mythology.
Why does Victor's Shadowbeak have Dark Whisp, while any Shadowbeak you catch or breed will never have that move? Simple, he likely genetically engineered that move into it and/or it's a result of him combining a bunch of Pals into a single Bioweapon Beast. And since you don't have Victor's technology or knowledge, you can't make a Shadowbeak like his, short of using Good Bad Bugs to capture him with his Shadowbeak and using it to breed Dark Whisp onto your own.
It seems strange that Shadowbeak, an otherwise organic Pal, drops carbon fiber and pal metal when captured or slain, but if you think about its origin, it's likely that Shadowbeak is actually a Cyborg.note Even on the off chance that it's not a cyborg in the conventional sense, it is a mish-mash of various other Pals, which probably includes Pals with metallic parts, such as the aforementioned Astegon. Furthermore, the circular object around its body is likely made of the stuff.
Necromus and Paladius drop large amounts of pal metal ingots when captured or slain because their armor and weapons are made from pal metal and the player character looted it. Jetragon drops Pal Metal ingots too, as its cybernetic parts are made of the stuff.
Paladius' moveset seems weird to contain a good number of Ice-elemental skills, but since Paladius is the compassionate and benevolent one between it and Necromus, those moves are there to protect Necromus from any Dragon Pals trying to take advantage of its weakness.
PAL Genetic Research Unit Executioners — despite how powerful they are — will usually avoid attacking wild Pals because they want the Pals alive so they can capture them and conduct experiments on them. That, and they appear to be an actual trained and disciplined security force/army. On the other hand, the Rayne Syndicate thugs and FPA zealots would be happy with dead Pals, as long as they can sell the remains for a profit, and the Brothers of the Eternal Pyre just want to set fire to the Palsfor the hell of it.
Trespassing onto the "nature sanctuaries" increases your Wanted Meter but poaching the Pals living there doesn't. This is likely because the PIDF only care about the flowers that grow on the sanctuaries; the same flowers that are used to make the drugs that their leader, Marcus Dryden, sells.
Victor Ashford apparently has some sort of psychic power, as he's shown levitating in an icy tornado in his intro. While the game doesn't show it (likely due to animation and modeling limitations), it's a possibility that he's the one using ice-elemental attacks to cover for his Shadowbeak's dragon-elemental weakness.
Tower bosses can use more than the usual three skills in combat. While this does seem like a standard case of The Computer Is a Cheating Bastard at first, the player can actually do the same thing — the game allows you to swap a Pal's currently-known skills on the fly, though this is usually not practical to do in actual combat because you have to stand still while doing so, leaving yourself vulnerable to attack. The bosses have no such concern because they and their Pal fight as one, and they let their Pal take the proverbial reins while they micromanage their partner's skills.
It seems odd that Dark's weakness is to Dragon, given that Dragon skills in this game are generally not framed as a Holy Hand Grenade or something else that would be effective against Black Magic. However, given how much Palworld pulls from Pokémon already, it wouldn't be surprising if Lockstin'stheory about the Dragon-type involving the manipulation of raw and primal arcane power also applied here. In other words, Dragon is essentially the same thing as Dark, but with less fancy mumbo-jumbo and more raw force, making the matchup a case of Beat Them at Their Own Game. (As for Ice being strong against Dragon but not Dark, that can be chalked up to low temperatures screwing with pokilothermic reptiles (to paraphrase a trainer from the Blackthorn Gym, suppressing the energy of dragons by chilling them, which Dark-elementals would be less vulnerable to due to drawing their magic from sources other than their own life-force), and Dragon not being super-effective on Neutral like Dark is can be chalked up to Dark's more refined approach, though the exact mechanism may be up for debate.)
The art style clash of the realistic environment and cartoony Pals serves to highlight just how mysterious and strange the Pals are.
Captured humans only have a handiwork skill of 1 because they know they've been enslaved and thus are resisting in the only way they can: working as slow as possible.
Using Killamari as a glider puts your head below its mouth. Considering its Paldeck entry stating that it latches onto the heads of Pals to suck out their brains, that puts you almost where it needs to be in order to feed…
Vanwyrm's and Vanwyrm Cryst's Paldeck entries mentions that their bones were used to make flutes that signaled battle vanguards and victory respectively, with the music being audible past mountains. This confirms that the Precursor society that left behind the ancient ruins had battles or even wars against each other or some other threats, which opens up several unsettling questions such as Pals being used to wage war.
If a Bushi's sword causes insanity in non-Bushi wielders and Bushi drops ingots when defeated or captured, likely from its sword, does that mean anything you make from ingots taken from Bushi are cursed?
You can use mods or a well-known glitch to capture tower bosses, and Zoe is the natural first target of this. You probably won't feel so great about capturing her after reading her diary, both because she's actually a pretty Nice Girl and Reasonable Authority Figure who happens to be Trapped in Villainy and because locking her in a cage with Grizzbolt is exactly how the Syndicate used to punish her. By capturing her and Grizzbolt in a Pal sphere, you've just done this to her again. Permanently.
In the gulf just south of the Grassy Behemoth Hills is an enormous skeleton of some kind of marine Kaiju, whose rib cage towers out of the surface of the sea like curved spires, leading to up to a skull large enough to almost be an island in and of itself. If this thing was a prehistoric Pal, it absolutely dwarfs even the largest Pal in the game. God help you if you can do an Ultraman Copy in this game. There were also more than one of these things, as similar skeletons can be seen partially exposed in some dungeons and a second exposed one can be found to the northeast.
Lily Everhart is fortunate she hasn't encountered a Lovander interested in having a night with her. Going by her Pal supremacist ideals ("The flesh and blood of humans exist only for the glory of Pals"), she would either have to defy her own values by denying the Lovander's advances and therefore putting her own human rights over its Pal rights, or let the Pal have its way with her.
Pals are known to hunt and eat humans. The same dilemma applies as well if she became the target of a Nitewing or Direhowl wanting food.
Talking to the Flame-worshipping Villager (whose all but stated to be a nonviolent member of the Brothers of the Eternal Pyre) at Fisherman's Point has her say "Well...Care to purify your mind and body in the pyre?". Notice the phrasing is "in the pyre" and how the cultists are called Martyrs. Does this mean that they practice Human Sacrifice by choosing volunteers among them to be burned alive?
Adding onto this, the Brothers of the Eternal Pyre underwent seriousMotive Decay and went from a fire worship cult to a gang of violent pyromaniacs. Who knows how many people (and Pals) they've captured and burned alive for the hell of it, under the guise of "purifying" them?
The Rayne Syndicate, Free Pal Alliance, and Black Marketeers are all involved in capturing and poaching Pals and selling them for profit, but nobody outside the islands knows the archipelago exists and the islands are so heavily protected that it's effectively impossible to get off them. There aren't any Pals in the villages and the Genetic Research Unit is off in their own corner not interacting with anybody, so who exactly are they selling them to?
Frostallion is a "grounded" flying mount like Quivern, Elphidran, and Shadowbeak, meaning that it will sink and start drowning if it lands on deep water. Couldn't its potent ice powers simply freeze the water under its hooves, allowing it to stand on water?
also applied here. In other words, Dragon is essentially the same thing as Dark, but with less fancy mumbo-jumbo and more raw force, making the matchup a case of Beat Them at Their Own Game. (As for Ice being strong against Dragon but not Dark, that can be chalked up to low temperatures screwing with pokilothermic reptiles (to paraphrase a trainer from the Blackthorn Gym, suppressing the energy of dragons by chilling them, which Dark-elementals would be less vulnerable to due to drawing their magic from sources other than their own life-force), and Dragon not being super-effective on Neutral like Dark is can be chalked up to Dark's more refined approach, though the exact mechanism may be up for debate.)