A scientific team from the Leibniz Institute for Zoo and Wildlife Research (Leibniz-IZW) and Leipzig University conducted a comparative analysis of lipid profiles of sperm to obtain insights into their susceptibility to damag-ing oxidation as well as the antioxidant potential in the semen of different species. The team found that there were major differences in the composition of lipids in sperm and seminal fluid, with more closely related species such as domestic cattle, domestic pig and domestic horse showing similarities in lipid profile.