A crocodile couple have had babies for the first time in their 18-year residence at an Austrian zoo.Officials at Viennas Schönbrunn Zoo said yesterday (Sun) that the Morelets crocodile pair have become parents to three babies.The adult reptiles called Durango and Puebla moved into the zoos “crocodile pavilion” in 1993 but never had any newborns until now. The happy-snappy family can be visited as of now at the zoo in Vienna-Hietzing.”The babies are just 30 centimetres long and weigh around 80 grams each. We feed them earthworms and insects,” one keeper explained.Morelets crocodiles are an endangered species. They are rather small compared to some other crocodiles with a maximum length of 3.5 metres. Their natural habitat can be found in Mexico, Guatemala and Belize.More than 2.18 million people visited Schönbrunn Zoo in 2009, making it one of the citys most popular attractions.