In China's Hengdaohezi Siberian Tiger Park, a 17-year-old Siberian tiger has given birth to three female tiger cubs and one male.
The Siberian Tiger Park is the world's largest breeding center for the species, with more than a thousand tigers.
It started with just 20 tigers in 1986 and has seen 23 tiger cubs born in just a few weeks since the start of May.
Caretakers will now have their hands full, as they work around the clock to ensure the cubs are not abandoned and are properly fed.
Siberian tigers are highly endangered with less than 1-thousand left in the wild.
Matthew Ashley, Arirang News