SCOTLAND: The Big Picture / Jellyfish (Pelagia noctiluca) amongst plankton , Shetland Isles, Scotland.

Pascal Kobeh / Mauve stinger jellyfish (Pelagia noctiluca) in open water. Azores, Atlantic ocean.

Stephane Granzotto / Jellyfish (Pelagia noctiluca) against white background, Mediterranean sea, Corsica

Stephane Granzotto / Jellyfish (Pelagia noctiluca) against white background, Mediterranean sea, Corsica

Doug Perrine / Phyllosoma larva of Spiny lobster (Palinurus sp.) riding a Purple jellyfish (Pelagia noctiluca), at night in surface waters of the deep ocean off Kailua Kona, Hawaii, USA. August. The larval crustacea...

Doug Perrine / Phyllosoma larva of Spiny lobster (Palinurus sp) riding a Purple jellyfish (Pelagia noctiluca), at night in surface waters of the deep ocean off Kailua Kona, Hawaii, August. The larval crustacean use...

Angelo Gandolfi / Mauve Stinger jellyfish (Pelagia noctiluca) swimming past discarded plastic net. Mediterannean Sea, September.

SCOTLAND: The Big Picture / Mauve stinger (Pelagia noctiluca) at the entrance of a cave, Sula Sgeir, Outer Hebrides / Western Isles, Scotland, July.

SCOTLAND: The Big Picture / Mauve stinger (Pelagia noctiluca), Sula Sgeir, Outer Hebrides / Western Isles, Scotland, UK, July.

Franco Banfi / Purple stinger jellyfish (Pelagia noctiluca) Santa Santa Maria Island, Azores, Portugal, Atlantic Ocean.

Franco Banfi / Purple stinger jellyfish (Pelagia noctiluca) Santa Maria Island, Azores, Portugal, Atlantic Ocean.

Franco Banfi / Purple stinger jellyfish (Pelagia noctiluca) Santa Santa Maria Island, Azores, Portugal, Atlantic Ocean.