A pygmy marmoset, the world's smallest species of monkey, has given birth to twin monkeys at zoo in New South Wales, Australia, weighing in at just 15 grams.
The tiny monkeys were born at Symbio Wildlife Park in Helensburgh on Monday.
Their weight of 15g may seem tiny, but compared to the already miniature size of their mother, these babies are heavy.
"If you put into perspective it is actually relative to a human giving birth to a 10-year-old child," the zoo said.
The average weight of an adult pygmy marmoset is 100g.
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Parents Gomez and Iti coupled-up in mid 2015, after the zoo set out on a match-making mission to put a halt to Gomez's bachelor ways.
Gomez's "soul mate" came to Australia from Auckland Zoo in New Zealand.
The zoo said the first-time parents had been "inseparable since the outset".
Pygmy marmoset's are the world's smallest monkey and one of the smallest primates.