Which type of animal was used in Damien Hirst's 1993 work 'Mother and Child Divided'?

'Mother and Child Divided' is a sculpture containing four glass-walled tanks, containing the two halves of a cow and calf preserved in formaldehyde solution. The sculpture was created for an exhibition at the 1993 Venice Biennale and won Damien Hirst the 1995 Turner Prize at Tate Britain in London.

Hirst's artwork presents a mother and child not only forever separated from one another, but also fatally severed in themselves. Hirst claims the bisecting and skinning of animals is about giving people the possibility to look at animals and art in a new way. In an interview, he explained that cutting up cows and other animals is "like creating emotions scientifically". He believes seeing what is on the inside and outside simultaneously is beautiful. "The only problem is that it’s dead ... In a way, you understand more about living people by dealing with dead people."

Hirst wants his work to attract and repel at the same time. Cows are the most slaughtered animals ever, both as food and material. Hirst claims that his cows in formaldehyde have more personality than any cows walking about in fields.

Damien Steven Hirst (born 1965) is an English artist who uses death as a central theme in his works. As well as cows, Hirst has preserved sharks, sheep, and zebras in the name of art. His best-known sculpture is 'The Physical Impossibility of Death in the Mind of Someone Living', featuring a 14-foot (4.3 m) tiger shark immersed in formaldehyde.