Scientists discover a hidden “ID card” in cat urine

Researchers have identified 13 branched-chain fatty acids in cat urine that form stable, individually distinctive profiles. Cats can detect differences between these profiles, suggesting that the compounds may help them recognize one another long after a scent mark is deposited.

研究人员在猫尿中发现了13种支链脂肪酸，它们可以形成稳定且具有个体差异的化学特征。猫能够察觉这些特征之间的差异，这表明相关化合物可能帮助它们在气味标记留下很久后仍能识别彼此。