Most puppies of the same sex in one litter

The largest litter of female puppies is 16, all of whom were born to Llana, a Greyhound x Saluki, owned by Nigel Wood (UK), on 27 June 1998 at Bolsover, Derbyshire, UK. Unfortunately, three of the puppies were stillborn.

The largest litter of male puppies is 15, all of whom were born on 29 November 2004 to Tia, a Neopolitan mastiff, owned by Damian Ward (UK) and Anne Kellegher (Ireland) of Manea, Cambridgeshire, UK.

Tia: The other nine were females, making this the largest litter of all. They were born by Caesarian section, one of the males was still born, three of the puppies died in the first week. Tia's full name is Abellatino Arabella. The father is called Caesar.