Milan Radisics / Aerial shot of the Gemasolar Thermosolar Plant owned by Torresol Energy, it uses molten salt as its heat transfer fluid and energy storage medium to produce energy for up to 24 hours a day, Seville, S...

Milan Radisics / Aerial shot of the Gemasolar Thermosolar Plant owned by Torresol Energy, it uses molten salt as its heat transfer fluid and energy storage medium to produce energy for up to 24 hours a day, Seville,...

Anup Shah / Aerial view of Ol Doinyo Lengai (The Mountain of God) Volcano, Rift Valley, Tanzania. Note- light gray flows known as 'squeeze-ups' from the highly fluid lava, still active.

Gerry Ellis / Blue Poison Dart Frog (Dendrobates azureus) secretes a fluid from its skin which is used by indigenous Indians to poison the tips of arrows, native to South America

Doug Gimesy / Sue Swain kissing rescued bush fire victim koala (Phascolarctos cinereus) named 'Sooty'. Sooty was very badly burnt during the Taree bushfires (NSW) in November 2019. His nose, hands, feet and chin we...

Doug Gimesy / Sue Swain with rescued bush fire victim koala (Phascolarctos cinereus) named 'Sooty'. Sooty was very badly burnt during the Taree bushfires (NSW) in November 2019. His nose, hands, feet and chin were...

Doug Gimesy / Sue Swain with rescued bush fire victim koala (Phascolarctos cinereus) named 'Sooty', Sooty was very badly burnt during the Taree bushfires (NSW) in November 2019. His nose, hands, feet and chin were...

Doug Gimesy / Very badly burnt front foot of a Koala (Phascolarctos cinereus) named 'Sooty' from the Taree bushfires (NSW) in November 2019, is held by koala rescuer and carer, Sue Swain. When he arrived, his nose...

Doug Gimesy / Sue Swain looks at the bush fire victim koala (Phascolarctos cinereus) named 'Sooty' who she has just applied burn cream to. 'Sooty' was very badly burnt during the Taree bushfires...

Doug Gimesy / ?Sue Swain gives a bush fire victim koala (Phascolarctos cinereus) named 'Sooty', a dietary supplement in her garage (where she keeps this koala being cared for). ??Sooty' was very badly burnt during...

Doug Gimesy / ?Sue Swain gives a bush fire victim koala (Phascolarctos cinereus) named 'Sooty', a dietary supplement in her garage. '??Sooty' was very badly burnt during the Taree bushfires (NSW) in November 2...

Heather Angel / Bubble eye goldfish (Carassius auratus) with upward pointing eyes and two large fluid-filled sacs.. In captivity, Shanghai Zoo, Shanghai, China.