The Cuban crocodile is a small species of crocodile found in only today in Southwest Cuba. This critically endangered species used to be found across the Caribbean, but had its population dimished dramatically due to hunting. Tune in tonight at 8p on #insidethezoo, as we follow two crocs from bronxzoo, as keepers try to get samples of their blood to determine whether or not they're full Cuban crocodiles that could enter a breeding program.