1. The animal: There's no direct antonym for "badger" as a species of animal. You could use words like "bird" or "deer" to represent other types of animals, but they're not specific opposites.
2. To pester: The antonym for "badger" when it means to pester or harass someone would be "encourage", "support", or "comfort".
3. To dig: The antonym for "badger" when it means to dig (like a badger digs its burrow) could be "build", "construct", or "cultivate", depending on the context.
4. To extract: If "badger" means to extract information, the antonym could be "conceal", "hide", or "protect".
So, the best antonym for "badger" depends on the specific context and the meaning you want to convey.