Native to the Amazon rainforest, pygmy marmoset monkeys grow only to about 6" in size, excluding their tail. They are also known colloquially in Brazil as mono de bolsillos, or "pocket monkeys."
This little bunny was probably kidnapped from its Mother. Some think that its mother was killed, but NO. Mothers don't stay with their newborns because they draw predators. So if you find baby bunnies don't touch them! Their Mommy's are watching from afar!