Can a sea anemones kill people?

Some anemones can sting and be poisonous to humans. In some waters of the world though, much like the Daddy Long Legged spider, the anemone can still be poisonous, though not be able to inject poison into humans. This is the case with anemones on the Western US Coastline (Washington to California). As a child i grew up playing with anemones on beach days without any problems. In tropical waters and other locations, anemones stingers are able to pierce humans' skin and inject the anemone's toxin. Much like a bee sting, a few can simply be painful while enough could kill you. I don't know about allergens to anemones much like people can be to bees/foods/etc. If you are swimming in unfamiliar waters or simply playing by the beach, do some research before hand. Better safe than sorry :)