While twins are common for this species, quadruplets are an incredible rarity, occurring in fewer than 6% of births worldwide.
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Moo Deng (right), who became an internet sensation shortly after her birth at a Thai zoo, marked her first birthday Thursday
Moo Deng merchandise on the shelves of the Khao Kheow Open Zoo's souvenir shop in Chonburi
Visitors pose for photos with a Moo Deng mascot at Khao Kheow Open Zoo
Thai internet sensation Moo Deng turns one
Thailand's internet famous pygmy hippo Moo Deng marks her first birthday with a four-day festival
Moo Deng's birthday cake was made of watermelon, corn, dragon fruit and tomato
Thailand's pygmy hippo Moo Deng marked her first birthday on Thursday, drawing crowds of diehard fans even as she left behind the cute animal …
Moo Deng at two months old on September 15, 2024
Thailand's pygmy hippo Moo Deng marked her first birthday on Thursday, leaving behind the animal infancy which boosted her to worldwide intern…