The Black-tailed antenna ray (Plesiotrygon nana) is an extremely sensitive species of small ray with a long, fibrous tail. Only five zoos in the whole world breed them and only the Czech Republic’s Brno Zoo can boast a recent breeding (the parents are from Zoo Basel in Switzerland). One pup was born about six months ago, but because this species has a relatively long critical period after birth, Brno can only report the success now. There are now two more new pups in the exhibit and officials already know that they are females.