There is a very strong current between Cape Horn at the bottom of South America, and the Antarctic Peninsula, so small animals and larvae from these animals could not swim across, but they might hop from one “underwater island” to another. We are trying to understand how far animals can move in these oceans. Q: What will happen if you find the Porania sea star? Why are you looking for it? A: Thankfully we did find the Porania sea star in a lot of places we looked at, but not everywhere.