Bloom of moon jellyfish (© Hiroya Minakuchi/Minden Pictures)

【May 21 2013】The moon jellyfish is one of the most common jellies found in the world's oceans. These gelatinous creatures have been swimming the seas for 500 million years or more. They feed on tiny plankton, catching their prey in tentacles armed with nematocysts, which deliver toxins that stun the jellies' victims. But don't panic if you come across a moon jelly while swimming in the ocean--its sting can be irritating but it isn't fatal or dangerous to humans. Explore breathtaking Gallery from the HuluTrip homepage over the past 5 years..