Which insect creates loud droning noises from trees, occurring periodically every several years?

Cicada

Who was cursed by Apollo so that nobody believed her prophecies? In traditional Nativity scenes, what animals are commonly depicted around baby Jesus in the manger? What is a Florentine dish typically prepared with? Who is known for her service to wounded soldiers during the Crimean War and became known as 'the Lady with the Lamp'? What was the significance of the Battle of Saratoga?