A pistol shrimp's claw snap can create a cavitation bubble that momentarily reaches temperatures comparable to…

The answer

When the claw snaps shut, it launches a jet so fast a cavitation bubble forms and collapses with a bang loud enough to stun prey. For a split second, the collapse can hit at least 5,000 K (~4,700 °C).

Correct answer: Thousands of degrees (~4,700 °C)