Derek Galon / Drone shot revealing Victoria Falls, water is milky blue as it contains sulphur from Boiling Lake, Dominica, 2019
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Derek Galon / Drone shot approaching Victoria Falls after heavy rains, normally water is milky blue as it contains sulphur from Boiling Lake, after rain it is muddy, Dominica, 2019.
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Paul Hobson / Keel-billed toucan (Ramphastos sulfuratus) perched on branch with beak open. Laguna del Lagarto, Alajuela, Costa Rica.
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Tony Wu / Pygmy blue whale (Balaenoptera musculus brevicauda) swimming in blue water, Sri Lanka, Indian Ocean.
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Floris van Breugel / Sunset on the outer coast of Chichagof Island with the White Sulphur Hotsprings in the distance, South East Alaska, USA, July
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Eric Baccega / Sulphur formation, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
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Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
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Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
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Eric Baccega / Dallol hot spring with salt concretions coloured by sulphur, potassium and iron, Dallol Volcano, Danakil Depression, Ethiopia, March 2015.
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Franco Banfi / Pygmy blue whale (Balaenoptera musculus brevicauda) subspecies of blue whale, Mirissa, Sri Lanka, Indian Ocean. Endangered species.
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Franco Banfi / Pygmy blue whale (Balaenoptera musculus brevicauda) subspecies of blue whale, diving downwards, Mirissa, Sri Lanka, Indian Ocean. Endangered species.
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Franco Banfi / Pygmy blue whale (Balaenoptera musculus brevicauda) subspecies of blue whale, diving down, Mirissa, Sri Lanka, Indian Ocean. Endangered species.
