Animal euthanasia is the act of killing a nonhuman animal humanely, most commonly with injectable drugs. Euthanasia methods are designed to cause minimal pain and distress. Animal euthanasia is distin
Cat with leg shaved for catheterization
1912 press advertisement for "The Greener Killer", a firearm for euthanizing ponies and horses
Lethal chamber in the Royal London Institute and Home for Lost and Starving Cats
A gas chamber is an apparatus for killing humans or animals with gas, consisting of a sealed chamber into which a poisonous or asphyxiant gas is introduced. Poisonous agents used include hydrogen cyan
Animal euthanasia
…animal's body relaxing. Gas anesthetics such as isoflurane and sevoflurane can be used for euthanasia of very small animals. The animals are placed in sealed chambers where high levels of anesthetic gas are introduced. Death may also be caused using carbon dioxide once unconsciousness has been achieved by inhalation…
Gas chamber at Majdanek concentration camp near Lublin
Interior of Majdanek gas chamber, showing Prussian blue residue
The openings through which Zyklon B was poured into the gas chamber of crematorium II at Auschwitz Birkenau are visible in this February 1943 photo, taken by SS Dietrich Kammann. Poles Ludwik Lawin and Taduesz Kubik, who worked in the camp photography studio, stole a number of Kammann's negatives and buried them.
Pig CO2 gas chamber using the Paternoster system. The gondolas are empty. CO2 levels increase the lower down the pit the gondolas move.