Mick Jenner / Water vole (Arvicola amphibius) feeding on plastic, West Sussex, England, UK.

Juergen Freund / Paralytic tick (Ixodes holocyclus) with engorged body on human hand, this species affects many species, Spectacled flying fox (Pteropus conspicillatus) among them and infects them with a toxin that ca...

Bernard Castelein / Bitter nightshade (Solanum dulcamara), Peerdsbos, Brasschaat, Belgium. July

Bernard Castelein / Cinnabar moth (Tyria jacobaea) caterpillars on Ragwort (Senecio jacobaea) Peerdsbos, Brasschaat, Belgium. July

Nick Upton / Devil's apple (Solanum linnaeanum) with toxic fruit. Invasive species, native to South Africa. Sardinia, Italy. June.

Nick Upton / Apple of Sodom / Devil's apple / Devil's tomato (Solanum linnaeanum / sodomaeum) an invasive South African species with toxic fruits developing, coastal scrubland, Sardinia, Italy, Jun...

John Cancalosi / Snapping turtle (Chelydra serpentina) in blue-green algal bloom (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland, USA. October 2018.

John Cancalosi / Snapping turtle (Chelydra serpentina) in blue-green algal bloom (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland, USA. October 2018.

John Cancalosi / Snapping turtle (Chelydra serpentina) in blue-green algal bloom (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland, USA. October 2018.

John Cancalosi / Snapping turtle (Chelydra serpentina) amongst leaves in blue-green algae (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland, USA. October 2018.

John Cancalosi / Snapping turtle (Chelydra serpentina) amongst leaves in blue-green algal bloom (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland, USA. October 2018.

John Cancalosi / Red-eared slider (Trachemys scripta elegans) in blue-green algae (Woronichinia naegeliana). Microcystin produced is toxic to wildlife and humans. Maryland. October 2018.

John Cancalosi / Black-crowned night-heron (Nycticorax nycticorax) juvenile preening whilst standing on log. Toxin forming Blue-green algae (Woronichinia naegeliana) in water behind. Maryland. October 2018.

Nick Upton / Hemlock water-dropwort (Oenanthe crocata) umbel flowering, Wiltshire, UK, May.

Nick Upton / Hemlock water-dropwort (Oenanthe crocata) flowering on a river bank, Wiltshire, UK, May.

Nick Upton / Hemlock water-dropwort (Oenanthe crocata) flowering on a river bank, Wiltshire, UK, May.

Stephen Dalton / Water dropwort flower (Oenanthe crocata), the most poisonous plant in UK. Sussex, England

Jen Guyton / Yellow-striped poison dart frog (Dendrobates truncatus) in the Cartagena Botanical Gardens, Colombia.

Mick Jenner / Water vole (Arvicola amphibius) eating plastic waste , West Sussex, England, UK.

Clay Bolt / Scorpion (Tityus cerroazul) one of the most highly toxic species of scorpion in Central America. Cocobolo Nature Reserve, Panama.

Clay Bolt / Scorpion (Tityus cerroazul) one of the most highly toxic species of scorpion in Central America. Cocobolo Nature Reserve, Panama.

Will Watson / Monk's-hood (Aconitum napellus), Cadmore Brook, Tenbury Wells, Worcestershire, England, UK, May.

Georgette Douwma / Armed anemone (Dofleinia armata) with a Magnificent shrimp (Ancylomenes magnificus) The sting of Dofleinia armata presents a danger to humans. Injuries resulting from contact with this species are co...

Alex Mustard / Flamingo tongue cowrie (Cyphoma gibbosum) feeding on Sea rod soft corals.This species of cowrie absorbs toxic chemicals from the corals into body to become poisonous itself. East End, Grand Cayman, Ca...

Adrian Davies / Manchineel tree (Hippomane mancinella) with sign warning that it is dangerous. This species has poisonous fruit, whilst the sap is toxic, and even standing beneath the tree in the rain can cause blist...

Adrian Davies / Manchineel tree (Hippomane mancinella) with sign warning that it is dangerous. This species has poisonous fruit, whilst the sap is toxic, and even standing beneath the tree in the rain can cause blist...

Adrian Davies / Manchineel tree (Hippomane mancinella) with sign warning that it is dangerous. This species has poisonous fruit, whilst the sap is toxic, and even standing beneath the tree in the rain can cause blist...

Adrian Davies / Manchineel tree (Hippomane mancinella) poisonous fruit on the ground, Barbados.

Adrian Davies / Manchineel tree (Hippomane mancinella) poisonous fruit on the ground, Barbados.

Adrian Davies / Blue-Green Algae (Cyanobacteria) bloom on Slapton Ley, Devon, England. This bacteria produces toxins including Micocystin, July, 2014.

Adrian Davies / Blue-Green Algae (Cyanobacteria) bloom on Slapton Ley, Devon, England. This bacteria produces toxins including Micocystin, July, 2014.

Adrian Davies / Blue-Green Algae (Cyanobacteria) bloom on Slapton Ley, Devon, England. This bacteria produces toxins including Micocystin, July.

Adrian Davies / Blue-Green Algae (Cyanobacteria) bloom on Slapton Ley, Devon, England. This bacteria produces toxins including Micocystin, July.

Duncan Usher / Spanish Fly (Lytta vesicatoria) specimens, excretes cantharidin, a highly toxic substance when disturbed, Europe

Alex Hyde / Strawberry poison frog (Oophaga pumilio) resting on moss-covered buttress route, lowland rainforest, Costa Rica.

Charlie Hamilton-James / Maasai men making poison arrows which they sell in the market at Ol'Pusimoru. The arrows are tipped with a latex made from Acokanthera tree, Masai Mara area, Kenya, Africa. November, 2016.

Charlie Hamilton-James / Ex-poacher holding poison arrow, explaining to Kenya Wildlife Service rangers and David Sheldrick Wildlife Trust scouts about the use of poison arrows to kill elephants, Tsavo East National Park, Keny...

Charlie Hamilton-James / Ex-poacher holding poison arrow, explaining to Kenya Wildlife Service rangers and David Sheldrick Wildlife Trust scouts about the use of poison arrows to kill elephants, Tsavo East National Park, Keny...

Charlie Hamilton-James / Scout from David Sheldrick Wildlife Trust demonstrating how to use bow and poison arrow to ranger from Kenya Wildlife Service, Tsavo West National Park, Kenya, Africa. November, 2015.

Charlie Hamilton-James / Person holding arrowheads tipped with poison, used to Kill Elephants for the ivory trade, Tsavo West National Park, Kenya, Africa.

Charlie Hamilton-James / Arrows tipped with poison made by poachers to kill Elephants for the ivory trade, Tsavo West National Park, Kenya, Africa.

Charlie Hamilton-James / Person holding arrow tipped with poison made by poachers to kill Elephants for the ivory trade, Tsavo West National Park, Kenya, Africa.

Nigel Cattlin / Modular, lockable secure farm chemical safe store for toxic compounds, spray chemicals and products, Berkshire, UK.

Ashley Cooper / Blue green algae (Cyanobacteria) in shallow water, Lake Windermere, Ambleside, Lake District National Park, Cumbria, UK. June.

Ashley Cooper / Man filming on mobile phone to record blue green algal (Cyanobacteria) bloom in lake, Algal blooms are exacerbated by nutrients from raw sewage being dumped into the lake, Lake Windermere, Lake Distri...

Ashley Cooper / Algal bloom of blue green algae (Cyanobacteria), Lake Windermere, Lake District National Park, Cumbria, UK. August, 2020.

Ashley Cooper / A line of blue green algae (Cyanobacteria) caused by water pollution, Lake Windermere, Lake District National Park, Cumbria, UK. November. 2021.

Ashley Cooper / Blue green algae (Cyanobacteria) on the shore of Lake Windermere, Ambleside, Lake District National Park, Cumbria, UK. November, 2021.

Paul Harcourt Davies / Panther cap (Amanita pantherina), highly poisonous, growing in Birch woodland around Sulphurous marshland in the Manziano Caldera, Lazio, Italy. October.

Paul Harcourt Davies / Deadly nightshade (Atropa belladonna), highly poisonous, in flower, Tuscany, Italy. June.

Tony Wu / Halitholus pauper hydrozoan with a single stinging array extended, Hokkaido, Japan, Pacific Ocean.

Chris Mattison / Glandular skin of the Amazon milk frog (Trachycephalus resinifictrix), South America

Chris Mattison / Marine toad / Cane toad (Rhinella marina) close up of head.

Chris Mattison / Marine toad / Cane toad (Rhinella marina) sitting on dried leaves.

Chris Mattison / Marine toad / Cane toad (Rhinella marina) on white background.

Chris Mattison / Marine toad / Cane toad (Rhinella marina) on white background.

Chris Mattison / Marine toad / Cane toad (Rhinella marina) sitting on dried leaves.

Milan Radisics / Aerial view of ash pond near city of Lodz, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons commonly known as ash ponds....

Milan Radisics / Aerial view of ash pond, nicknamed 'Turquoise Lake' near Konin, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond on the edge of a forest, Bosnia and Herzegovina. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons common...

Milan Radisics / Aerial view of ash pond near coal power plant visible in the background, Bosnia and Herzegovina. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines in...

Milan Radisics / Aerial view of ash pond in East-Central Europe. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons commonly known as ash ponds. Th...

Milan Radisics / Aerial view of ash pond in East-Central Europe. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons commonly known as ash ponds. Th...

Milan Radisics / Aerial view of ash pond, called 'Turquoise Lake' near Konin, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons co...

Milan Radisics / Aerial view of ash pond, nicknamed 'Turquoise Lake' near Konin, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons...

Milan Radisics / Aerial view of ash pond, nicknamed 'Turquoise Lake' near Konin, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through a pipeline into the ash p...

Milan Radisics / Aerial view of ash pond near Turek, Poland. Former open pit coal mine now used to store coal ash after burning in power plants. The ash is mixed with water and pumped through pipelines (fixed on sand...

Milan Radisics / Aerial view of ash pond near city of Lodz, Poland. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons commonly known as ash ponds....

Milan Radisics / Aerial view of ash pond, Montenegro. After coal is burned in power plants, the waste ash is mixed with water and pumped through pipelines into sludgy lagoons commonly known as ash ponds. The ponds are...

Paul Harcourt Davies / Turk's cap lily (Lilium martagon). Italy. July.

Ingo Arndt / Honey bee (Apis mellifera) poisoned bee turns out her mouthparts shortly before dying at hive entrance, Germany.

Bert Willaert / Sign informing visitors of the use of Sodium fluoroacetate or 1080 poison for control of pest foxes and feral cats. Poison used by Western Shield wildlife recovery program in attempt to sustain popula...

Bert Willaert / National Park information signs and sign informing visitors of the use of Sodium fluoroacetate or 1080 poison for control of pest foxes and feral cats. Poison used by Western Shield wildlife recovery...

Milan Radisics / Service road crossing an abandoned pond used for the disposal and stacking of phosphogypsum with crystallised patterns and shallow, but highly toxic radioactive green water in Huelva, Southern Spain....

Guy Edwardes / Fly agaric (Amanita muscaria), New Forest National Park, Hampshire, England, UK