It's an alien-looking sea saucer on this episode of "Scuba Sam's World." Dive deep in the ocean and discover the moon jellyfish. Learn how this beautiful soft-bodied sea creature uses its stinging tentacles to catch food as it's drifted through the ocean for more than 500 million years!

Originally released by National Geographic, 2018. Streaming video file encoded with permission for digital streaming by Infobase on January 05, 2023.