Thanks to the International Fund for Animal Welfare (IFAW), Zolushka (whose name means Cinderella in Russian) was rescued and rehabilitated in 2013, after her mother was likely killed by poachers.
She was then rereleased into the wild, with the hope that she'd be able to thrive on her own.
Two years later, on Monday, motion-sensing cameras in Russia's Bastak Nature Reserve caught an incredibly exciting picture of what Zolushka looks like now - with her two young cubs.
Zolushka is the first-ever rehabilitated Amur tiger to give birth to cubs in the wild.
The photograph snapped just the other day provides "historic" proof of her successful reintegration to the wild, according to a press release from IFAW.
Zolushka with her two cubs.IFAW