The animals in the Pride Lands would likely be very confused. The birds would fly around the child, chirping loudly as if to alert the others. The elephants might be a bit startled and keep their distance. The zebras would probably be skittish. However, if the child showed no harm, some of the more friendly animals like the giraffes might come closer to investigate. They would be trying to figure out what this strange two - legged creature is and what it's doing in their world.
Some of the animals would be terrified. The smaller ones, like the mice and squirrels, would run and hide. The lions, as the protectors of the Pride Lands, would approach the child slowly. If the child was crying or seemed distressed, Nala might feel a sense of motherly instinct and try to comfort it. Rafiki, the wise mandrill, would be very interested in the human child. He might see it as a sign or something special sent from the spirits. He would study the child closely and try to communicate with it in his own way.
The hyenas would probably be very suspicious and see the human as a potential threat or an easy target. They might try to attack the human, which would put Simba in a position of having to defend the human.
Some animals might be scared. After all, humans are so different from them. But some brave ones, like the fox, might be curious and want to interact. For instance, a fox might see the human as a potential business opportunity or just be interested in the new things the human has.
The human child's character can be developed by showing their initial reaction to the strange new world of the Pride Lands. For example, they might be scared at first but then gradually become curious. Their relationships with the animals, like how they bond with Simba or Timon and Pumbaa, can also shape their character. If they have a special skill or talent, like singing in a way that attracts other animals, that can be part of their development too.
The human child can fit in through friendship. For example, making friends with the young cubs like Simba. They can learn from each other, with the human child sharing stories of the human world and the cubs teaching about the ways of the jungle. Another way is by having a special purpose. Maybe the child is there to help heal a rift between different animal groups in the Pride Lands.
The human child could interact through acts of kindness. For instance, sharing food with a hungry animal. This would break down initial barriers and start a friendship.
Simba, if he's still in a leadership role, would likely be cautious yet supportive. He'd want to make sure that Vitani's pregnancy doesn't cause any unrest in the pride. He might offer his wisdom on how to raise a strong and noble cub. And the younger lions in the pride could look up to Vitani with newfound respect, seeing her as a symbol of new life and the future of the pride.
The human child could be a part of a group that is exploring Africa and gets separated from them. The child stumbles upon the Pride Lands. The lions might think the child is some kind of strange cub at first. The child then learns the ways of the lions and in turn, teaches them about human things like building simple shelters. Eventually, the child helps the lions defend their territory from an outside threat.
Maybe the human is a scientist who has been studying a strange phenomenon that leads them to the Pridelands. They bring with them knowledge and technology that is both useful and confusing to the animals. For example, they might have a camera which the animals mistake for some kind of magic eye. The human could also use their medical knowledge to help injured animals, which earns them respect in the Pridelands.
Communication would be a major challenge. Since Nala is a lion and the human doesn't speak the same language as lions, they would have to find ways to understand each other. This could involve a lot of body language and trial - and - error.
One idea could be that a human child gets lost in the Pride Lands and is adopted by a lioness. The child grows up learning the ways of the lions, facing the same challenges as Simba did, like dealing with Scar's evil plans. Another could be that the human child has a special power, like being able to communicate with all animals in the Pride Lands, and uses it to bring peace between the lions and other species. Or perhaps the human child is a descendant of an ancient tribe that has a connection to the Pride Lands and must fulfill a prophecy to save the kingdom.