If you want an interesting variation, why not have trees that use humans as some sort of energy supply, like the Matrix?
The human needs to be kept intact and healthy for this, just imprissoned Merlin-like within the tree.
For extra extra fun, the tree that bears one fruit at a time, which takes the form of a dryad, based on the person within the tree, but symbiotically tied to that tree. If you extract the human, do you kill the dryad? Makes for fun issues.
If you want a 'blood' theme, some dryads might come with the pointy teeth...
Dangerous forests...
Overall, I'd suggest the trees aren't a 100% successful at snaring even small animals, mainly getting the injured or old ones. Some animals might even be cooperating with the trees, if they protect them from their predators.
--
"It is the business of the future to be dangerous" - Hawkwind
The human needs to be kept intact and healthy for this, just imprissoned Merlin-like within the tree.
For extra extra fun, the tree that bears one fruit at a time, which takes the form of a dryad, based on the person within the tree, but symbiotically tied to that tree. If you extract the human, do you kill the dryad? Makes for fun issues.
If you want a 'blood' theme, some dryads might come with the pointy teeth...
Dangerous forests...
Overall, I'd suggest the trees aren't a 100% successful at snaring even small animals, mainly getting the injured or old ones. Some animals might even be cooperating with the trees, if they protect them from their predators.
--
"It is the business of the future to be dangerous" - Hawkwind