a vibrant jellyfish floats gracefully underwater, illuminated by light rays piercing the ocean’s surface

beauty nature aquatic life biodiversity bioluminescence blue conservation deep sea ecosystem environment ethereal exploration floating glowing gracefulness illumination invertebrate jellyfish light rays marine biology medusa mystical natural ocean oceanic oceanography purple reflection scenic science creature serene submerged tentacle tentacles tranquility transparent tropical underwater vibrant water wild wildlife zoology