A common black ant was aggressively attacking a small bundle of baby garden spiders.
This occurred on my deck; the spider’s web seemed to act as an effective shield to the would-be attacker. Several baby spiders did appear dead; although I did not see the ant actively kill them. The ant would return many times trying to pull the web apart with its mandibles.

Black ants are omnivorous and will eat spiders and small insects, although with the level of determination this one had, I was wondering if there was some active instinct to kill a future predator, such as lions and hyenas attacking each other’s young. Either way I thought it was an interesting encounter being I generally notice black ants to be extremely passive and non aggressive.