Although the volume of animals traded may be greater in Southeast Asia, animal trading in Latin America is widespread as well. In open air Amazon markets in Iquitos and Manaus, a variety of rainforest animals are sold openly as meat, such as agoutis, peccaries, turtles, turtle eggs, walking catfish, etc. In addition, many species are sold as pets. The keeping of parrots and monkeys as pets by villagers along the Amazon is commonplace. But the sale of these "companion" animals in open markets is rampant. Capturing the baby tamarins, marmosets, spider monkeys, saki monkeys, etc., in order to sell them, often requires shooting the mother primate out of a treetop with her clinging child; the youngster may or may not survive the fall. With the human population increasing, such practices have a serious impact on the future prospects for many threatened species. The United States is a popular destination for Amazonian rainforest animals. They are smuggled across borders the same way illegal drugs are – in the trunks of cars, in suitcases, in crates disguised as something else. In Venezuela more than 400 animal species are involved in subsistence hunting, domestic and international (illegal) trade. These activities are widespread and might overlap in many regions, although they are driven by different markets and target different species. In Brazil, the wildlife trade has grown over the years, as it one of the most biodiverse areas in the world. Mammals and amphibians are among the highest traded animals. In recent studies, non-native species of amphibians and mammals were identified in Brazil, with frogs and rodents, respectively, posing the greatest invasion risks. The online trade of amphibians as exotic pets has risen almost six times since 2015. Online Through both deep web (password protected, encrypted) and dark web (special portal browsers) markets, participants can trade and transact illegal substances, including wildlife. However the amount of activity is still negligible compared to the amount on the open or surface web. As stated in an examination of search engine key words relating to wildlife trade in an article published by Conservation Biology, "This negligible level of activity related to the illegal trade of wildlife on the dark web relative to the open and increasing trade on the surface web may indicate a lack of successful enforcement against illegal wildlife trade on the surface web." A study conducted by the International Fund for Animal Welfare (Ifaw)