Ondine Sherman first became interested in animal welfare when served a dish of tongue cooked by her grandmother at age 8, an experience which resulted in her adopting a vegetarian lifestyle.

Factory farming is the process of raising livestock in industrial systems in which animals are confined at high stocking density to produce the highest output at the lowest cost.

[8] Farm animals are often subjected to artificial feeding and lighting regimes, selective breeding, and intensive confinement, often in cages and at extreme stocking densities, to produce the greatest possible output of meat, milk and eggs in the shortest amount of time at the lowest cost.

[15] Voiceless claims that kangaroos are hunted in the largest commercial slaughter of land-based wildlife on the planet, primarily because they are perceived to be overpopulated in Australia and considered a pest.

[17] While shooters are required by the relevant Codes of Practice to aim to shoot a kangaroo in the brain and therefore cause instantaneous death,[18] it is Voiceless's view that non-fatal body shots are unavoidable and cause extreme injuries.

The kangaroo industry code allows joeys to be killed by a single blow to the head (usually with a steel pipe or against the tow bar of the shooter's truck) or through decapitation.