The Adelaide Zoo in Australia recently had a litter of Western Swamp Tortoises. When fully grown, they'll probably be about 5 inches long. But for now, the 4 hatchlings are each about the size of an Australian dime. They're eating brine shrimp and mosquito larvae. You can see more photos of them at Zooborns.
There aren't many Western Swamp Tortoises left. The Adelaide Zoo now has 11. The Perth Zoo has a few. There are about 200 in the Ellen Brook Reserve and Twin Swamp Reserve in Western Australia.