Mexican environmental protection officials found 98 crocodiles that were being kept in the backyard of a home in the Gulf state of Veracruz, authorities said.The reptiles were found in six small swimming pools at a house in the municipality of Tenozapa in Veracruz after an anonymous caller alerted authorities, Mexico's environmental protection agency said in a news release Monday.The crocodiles, which ranged in length from 12 inches (30 centimeters) to 6 feet (1.7 meters), are protected by Mexican environmental laws.Authorities said the owner of the house has five days to present documents showing the origin of the animals.