Horses, donkeys, camels, and mules were used to carry supplies such as food, water, and medical supplies

Dogs and pigeons would carry messages and letters to different people.

Canaries were trained to be able to detect poison gas.

Cats and some dogs were trained to hunt down mice so the soldier wouldn't get diseases spread to them.

Some of the extra dogs were used by the red cross during the war.

Camels would help transport wounded soldiers.

Horses would transport people to the front line quick. These horses were trained specially so that they were safe and could transport troops quick. They wore gas masks.

Monkeys were trained to watch over the troops when they are sleeping. if they see something wrong they would make noise and wake up the soldiers.