Which marine animal anchors itself to rocks and filters food particles from water

Barnacle

Which animal primarily eats toxic jellyfish tentacles and incorporates their stings into its own defense Which game designed by Reiner Knizia features auctions and players trying to gain majority holdings in different types of cards? Who established the Mali Empire in West Africa around 1235? Which famous Marvel Comics event features a collision between multiple Earths leading to a new unified universe? Which friend is famously known for their terrible Thanksgiving dinners?