Are Mimi the cat's offspring the first known cases of interbreeding between cats and dogs? Her litter of six, born in Passo Fundo, Brazil, contained three doglike offspring. Their three siblings with more feline features died soon after birth.
Mimi's owner, Cassia Aparecida de Souza, claims Mimi was found mating with a neighborhood dog three months ago and that her offspring are a result of that encounter.
Dogs and cats belong to distinct species, meaning that they should be unable to interbreed. A geneticist from a local university plans to analyze blood samples from the animals in an attempt to get to the bottom of the mystery.