An apocalypse broke out. Not a.. "Oh no I'm gonna be killed/eaten!" And it's more.. weird. Some might even surrender themselves.
Something happened, maybe a government experiment went wrong, or maybe the aliens did something. Plants and animals mutated, and even new monstrous species were created.
Mutated plants would capture humans with their vines, binding them with it and unleash a substance that will dissolve any clothing, leaving their prey bare and weak as the substance also makes humans sensitive and vulnerable. This allows the plant easy access to.. use the human for you know what. Escape rate: 50%
Mutated animals on the other hand are much rougher, they've grown more intelligent, just a few IQ below average humans. They often hunt in groups using makeshift gear to immobilize their prey (humans). Stealing humans gears and weapons to use as their own. Mutated animals would also capture humans to use for their own tribes/colonies/group for their own.. pleasure and entertainment, enslaving humans in ways that might feel good for others who like it. Escape rate: 20%
The new monstrous species are more advanced and intelligent than humans, maybe they are the aliens? They would capture humans, take them to their bases and experiment on their.. no no parts. Hey at least the captured humans get to live like pets? Sometimes like lab rats but either way they still get treated well. The alien like creatures love humans, in a way to where they would use their tentacles to.. you know what. However they still see humans below them, just like how humans see animals below them like pets, humans are treated the same way by the aliens as to how humans treat animals, like pets. The aliens treat humans like pets. Escape rate: near 0%