Alex Mustard / Backlit detail of branching fire coral (Millepora alcicornis) showing the hair like polyps, filled with stinging nematocysts. East End, Grand Cayman, Cayman Islands. Caribbean Sea.
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Juergen Freund / Box jellyfish {Chiropsalmus sp.} in fishtank on beach with palmtrees in background, Queensland, Australia
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Juergen Freund / Box jellyfish {Chironex sp.} in mangroves, split level, Australia
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Sue Daly / Colony of Sunset cup corals (Leptopsammia pruvoti), Sark, British Channel Islands, UK, July.
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Sue Daly / Close-up of a Sunset cup coral (Leptopsammia pruvoti), with tentacles moving, Sark, British Channel Islands, UK, July.
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Sue Daly / Colony of Sunset cup corals (Leptopsammia pruvoti), Sark, British Channel Islands, UK, July.
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Sue Daly / Snakelocks anemone (Anemonia viridis) moving in the current, Sark, British Channel Islands, UK, June.
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Sue Daly / Group of Jewel anemones (Corynactis viridis), Sark, British Channel Islands, UK,
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Sue Daly / Yellow cluster anemones (Parazoanthus axinellae) with a Bloody Henry starfish (Henricia oculata), Sark, British Channel Islands, UK, August.
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Sue Daly / Group of White-striped anemones (Actinothoe sphyrodeta), with tentacles moving in the current, Sark, British Channel Islands, UK, July.
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Alex Mustard / Backlit photo of stinging nematocysts on colony of Fire coral (Millepora dichotoma) Gubal Island, Egypt. Strait Of Gubal, Red Sea.
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Pete Oxford / Fire Coral (Millepora alcicornis) with fine hairs that contain nematocysts which sting on contact, Belize Barrier Reef, Belize
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Juergen Freund / Irukandji box jellyfish (Carukia barnesi) digesting two caught fish, north Australian
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Juergen Freund / Box jellyfish {Chiropsalmus sp.} in fish tank on beach with palm trees in background, Queensland, Australia 2006
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Juergen Freund / Person standing in water looking at Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard on beach with sign and flag warning people of Jellyfish, next to stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Boys looking at Box jellyfish {Chiropsalmus sp.} in fishtank on beach, Queensland, Australia 2006
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Juergen Freund / Woman standing in shallow water looking at Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard on beach with sign and flag warning people of Jellyfish, next to stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Lifeguard removing Jellyfish from net, after clearing stinger-resistant enclosure, Queensland, Australia Note - Surf Lifesaving Queensland have an effective policy of dragging nets through the water...
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Juergen Freund / Boys looking at Box jellyfish {Chiropsalmus sp.} in fishtank on beach, Queensland, Australia 2006
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Juergen Freund / Woman standing in shallow water looking at Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard checking water sample for Irukandji and Box Jellyfish after drag-netting stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Lifeguard using machine on beach, towing ropes for stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Box jellyfish {Chiropsalmus sp.} in fishtank on beach with palmtrees in background, Queensland, Australia
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Juergen Freund / Lifeguard checking water sample for Irukandji and Box Jellyfish after drag-netting stinger-resistant enclosure, Queensland, Australia, 2006
Juergen Freund / Lifeguard dragging net through stinger-resistant enclosure, checking for Irukandji and Box Jellyfish, Queensland, Australia 2006
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Juergen Freund / Close-up of Box jellyfish {Chiropsalmus sp.} eye, Queensland, Australia
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Juergen Freund / Snorkler looking at Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Person standing in shallow water with Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard dragging net through stinger-resistant enclosure, checking for Irukandji and Box Jellyfish, Queensland, Australia 2006
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Juergen Freund / Snorkler looking at Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Person standing in shallow water with Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard checking water sample for Irukandji and Box Jellyfish after drag-netting stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Woman looking at Box jellyfish {Chiropsalmus sp.} in fish tank on beach, Queensland, Australia 2006
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Juergen Freund / Person standing in shallow water with Box jellyfish {Chiropsalmus sp.} Queensland, Australia 2006
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Juergen Freund / Lifeguard checking water sample for Irukandji and Box Jellyfish after drag-netting stinger-resistant enclosure, Queensland, Australia 2006
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Juergen Freund / Box jellyfish {Chironex sp.} in mangroves, split level, Australia
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Juergen Freund / Box jellyfish {Chironex sp.} in fishing net, Australia
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Juergen Freund / Box jellyfish {Chironex sp.} amongst mangroves, Australia
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Juergen Freund / Box jellyfish {Chironex sp.} amongst mangroves, Australia