The line between "habitat" and "culture" is fuzzy. Would a pizzly raised by a polar bear mother learn to hunt on the ice? Would a pizzly with a grizzly bear mother & extended family learn to hibernate (esp. the preparation part)?
Even with ligers, the lines get blurred. How much of a tiger's love for swimming due to being taught to swim by their mother, and how much of a lion's fear of drowning is due to never being taught to swim? The answer is, cultural knowledge matters a lot. Lion cubs raised from birth in a zoo by a tiger foster family eventually learn to swim just fine, but get traumatized as the introvert in a family of extroverts. Tiger cubs raised from birth in a zoo by a lion foster family don't quite understand their siblings' fear of water, constantly egg them on to do dangerous things, and risk drowning as a cub because their mother won't go in to save them if they get in trouble.
Ditto, for motherhood. Motherhood isn't an instinct. Tigers & lions who get raised alone by humans without ever meeting another tiger, then get artificially inseminated or raped, don't magically become loving mothers. 9 times out of 10, they'll kill the cubs at birth. The remainder run away in terror, leaving the cub behind. Motherhood is a skill that needs to be learned & passed along. Even if the instinctive maternal bonding part eventually kicks in, without role models & cultural knowledge, the mother is likely to do something that seems (to her) like a good idea at the time, but isn't, and have her child die. Once those links get severed, they're incredibly hard to re-establish.
This is a major issue among zoo managers. For years, zoos raised big cats as human-fed bottle babies, then were shocked to discover that 2nd & 3rd-generation big cats were largely incapable of raising their own cubs. They'd literally push them aside when they tried to nurse & roar for the army of zookeepers to come feed them, because they didn't particularly enjoy getting their chapped & sore nipples chewed on & knew that a small army of eager hooman servants were standing by to do the job for them anyway.
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Interesting trivia: a "big cat" raised by humans from birth as a plus-sized housecat ultimately behaves in a manner that's indistinguishable from a housecat. The real difference between a "housecat" (raised in a loving, attentive home as a de-facto child) and a tiger raised in the same conditions is... if a hooman pisses them off or scares them, they can effectively fight back with overwhelming & potentially-deadly force, while a 15lb housecat has to settle for inflicting nasty laceration wounds and sulking.
The interesting thing, though, isn't the fact that big cats raised in pampered, stress-free luxury act like housecats... it's the fact that housecats behave like BIG cats. Most true small wildcats are painfully neurotic about their dual status as predators AND prey, and have amygdalas that are bigger & more reactive than their housecat peers. Big cats & housecats generally have smaller & less-active amygdalas. The fact that housecats tend to have the mellow, fearless personalities of big cats is precisely what distinguishes them from small wildcats.
Now, amygdala development *itself* is influenced by childhood experiences. A wild big cat is extraordinarily dangerous, regardless of its amygdala size at birth. A second-generation feral housecat will learn to fear almost any larger creature. The difference is, with housecats, "small amygdala" was an evolutionary advantage that enabled them to domesticate humans by being our cute & lovable companions. For small wildcats, it's an evolutionary disadvantage that makes them more likely to die young.
For big cats, amygdala size is still kind of random, because it doesn't consistently affect their survival rate. For captive/companion tigers, small amygdala is a massive evolutionary advantage that gets them bred to produce more friendly, mellow big cats. It might also be an evolutionary advantage that increases their willingness to take risks that ultimately work in their favor, and makes them less likely to be hunted & killed in places like India by enabling them to pull off the same trick their housecat cousins did thousands of years ago -- bond with & gain human allies, and forge a mutually-advantageous relationship.