81K views · 7.4K reactions | Welcome to the world to our precious Pygmy Marmoset twins. Pygmy Marmosets are the world's smallest monkey with a fully grown adult weighing in at just 100g (3.52 oz). These babies are so small they are no bigger than a human thumb! | Symbio Wildlife Park | Facebook

69K views · 4.1K reactions |  World's Smallest Monkey Babies  Pygmy Marmoset babies are seriously the cutest, fluffiest little bundles of joy that ever lived. Did you know that at birth they weigh just 15 grams and are the size of a human thumb? This may seem very tiny, but you have to feel sorry for the mother, as that would roughly be the same as a human giving birth to a 10 year old child. | Symbio Wildlife Park | Facebook

3K views · 18 reactions | One of the smallest babies in the world was born! He was born after only 24 weeks of pregnancy. Here's how the little one looks and how much he weighs: - Check the comments  | Dogs World | Facebook