Can a jellyfish kill whale?

It's highly unlikely that a jellyfish could kill a whale. Here's why:

* Size Disparity: Whales are enormous creatures, significantly larger than even the biggest jellyfish.

* Defense Mechanisms: Whales have thick blubber and tough skin, which would protect them from the sting of a jellyfish.

* Feeding Habits: Most jellyfish are small and feed on plankton. They are not predators of whales.

* Whale's Size: Whales can swallow massive amounts of water, including many jellyfish, without experiencing any ill effects.

However, there are some caveats:

* Box Jellyfish: These are some of the most venomous creatures in the ocean, but even they are unlikely to cause significant harm to a whale.

* Large Swarms: A massive swarm of jellyfish could potentially pose a threat to a whale, but this is highly improbable.

In conclusion: While it's technically possible that a jellyfish could harm a whale, it is highly improbable and unlikely to be a fatal event.