Which invertebrate animal's sting carries potent venom, causing severe pain to humans in Australian waters?

Box Jellyfish

In what year did the first Harry Potter movie premiere? The movie "Clueless" is loosely based on what Jane Austen novel? Which U.S. president first pardoned a Thanksgiving turkey Dango, a sweet snack from Japan, is made primarily from what type of flour? What ideological conflict dominated American foreign policy from roughly 1947 to 1991?