The trope of the man/woman/child who lives/is raised in the wild and communes with nature and animals.
From
TV Tropes:
A hero who lives largely in isolation from human civilization in the wild. They have an uncanny affinity with the local wildlife and can communicate with them easily and have them obey their commands. This kind of hero spends time helping visitors survive the region and protecting the region and its wildlife from those who would exploit or destroy it. Quite likely to have been Raised By Wolves. Tends to have No Social Skills if they leave the wilds. Could be either male or female.
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Classic Sci-Fi Tropes Masterlist