The verb to capture means to grab, trap, or take something that doesn't want to be grabbed, trapped, or taken. Hunters, pirates, and kidnappers all capture the things they want.
If you want that tiger, you're going to have to capture him, either by setting a trap or shooting him. Either way, his capture won't be easy. You can also capture a photograph of something — which, while it doesn't mean taking it against its will, is still a kind of taking in which the thing itself is not participating. The pirate captured his hostages, while his hostages captured the scene on their cell-phone video cameras.