rubbed on surfaces which leave chemical signals about the reproductive state of the female. Pygmy marmosets also perform visual displays such as strutting, back-arching, and piloerection when they feel threatened or to show dominance. Conservation Both species of pygmy marmosets are listed as Vulnerable on the IUCN Red List of Threatened Species. They are threatened by habitat loss in some areas of its range, and by the pet trade in others (i.e. Ecuador). Interaction between humans and the pygmy marmoset is associated with a number of behavioral changes in the animal including social play and vocalization, both of which are important to communication between animals in the species. Particularly in areas of heavy tourism, pygmy marmosets have a tendency to be less noisy, less aggressive, and less playful with other individuals. They are also pushed into higher strata of the rainforest than they would normally prefer. Tourism in areas native to the pygmy marmoset is also correlated with increased capture of the animal. Due to its small size and relatively docile nature, captured pygmy marmosets are often found in exotic pet trades. Capture causes even more behavioral variations, including a decrease in both the number and the sound level of vocalizations. Pygmy marmosets can also be found at local zoos, where they exist in groups. As pets Finger monkeys' (pygmy marmoset) value is associated with them being the smallest primate in the world. New-born pygmy marmosets are usually tall, and weigh from . Although these primates are not in danger of extinction, they are rare to find in the market for purchase. Prices range from $1,000 to $4,000. Generally, a pygmy marmoset's life span is from 15 to 20 years, they are known to have a shorter life in the wild mainly because they fall out of trees. Another expense for these creatures as pets is the necessary essentials in order to maintain them. Creating an environment similar to that of where they are from is important. For food, these creatures as pets are often fed fruits, insects, and smaller lizards. As pets, a baby pygmy marmoset needs to be fed every two hours for at least two weeks. Understanding their natural diet is also important because it helps maintain their good health from the necessary protein, calcium and other nutritional sources they need in order to survive. In the United States, each state has different regulations when it comes