How do you delete characters?

[Patchouli_Knowledge]

I have not seen any level X bears since dynamic levels of animal spawning has been removed.

As to the original poster's questions. There are two fast ways of getting rid of your characters:

1. Find ant hill and use raid repeatedly. This will provoke the 3 nearby ant swarms to attack your character. This may take a few tries before the ants full deplete your HHP.
2. Obtain the skill fishing, then swimming. Then turn on swimming (ignore the warning as you are intending to die) and go linger around deep water until your stamina drops to 0 which will drown your character.
3. Alternatively, find a boar or bear which are aggresive animals and go near them. Eventually they will assault your character and most likely kill him/her.

The long way requires less effort but also requires luck: Go AFK near a river. Hopefully a raider will kill your character. I only recommend doing this if you are getting ready to sleep.