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They've made full recoveries, and now it's time for koalas rescued during last year's devastating Australian bushfires to go back into the wild.

Science for Wildlife, a conservation organization in Sydney, released the first 12 koalas back into the Blue Mountains on March 25 and 27. Those koalas were saved in December and spent the last few months recovering at Sydney's Taronga Zoo. Dr. Kellie Leigh, Science for Wildlife's executive director, said in a statement that her team made sure conditions had improved enough to sustain the koalas.

"The recent rains have helped and there is now plenty of new growth for them to eat, so the time is right," Leigh said. "We will be radio-tracking them and keeping a close eye on them to make sure that they settle in okay."

On April 2, Port Macquarie Koala Hospital released a koala it rescued in October, and has plans to set 25 more koalas free in the next few days, The Independent reports. Sue Ashton, the hospital's president, said not only will the koalas go back to their home habitats, but in some cases, they will be returned "to their original tree."