Marlee and Tulara had also lost their moms. A car had hit Marlee's mom, and the impact had thrown Marlee out of his mom's pouch, leaving her bruised and bloody. While it's unknown what happened to Tulara's mom, Tulara had arrived at Amaroo Wildlife Shelter severely underweight, and she initially refused to eat.
All three wombats have struggled with health problems, as well as anxieties and fears from being away from their moms. But they've all gotten better - and their friendship with each other probably has a lot to do with it.