Horses are highly social animals that form close bonds with other members of their group. Because of this, it is reasonable to expect that the loss of a companion may affect their behaviour and emotional well-being. However, until recently, there has been surprisingly little scientific research into how horses respond to the death of another horse. A study led by Claire Ricci-Bonot and Daniel Mills at the University of Lincoln, with MSc student Emily Wilson, alongside Stefania Uccheddu of the San Marco Veterinary Clinic and Laboratory, Padua, Italy, aimed to address this gap.