Crab-eating macaque findings. One of the most well known examples of experiments on crab-eating macaques is the 1981 Silver Spring monkeys case. In 2014, 21,768 crab-eating macaques were imported in the United States to be used in experimentation. The crab-eating macaque has the third-largest range of any primate species, behind only humans and rhesus macaques. The IUCN Red List categorizes the species as Least Concern, and CITES lists them as Appendix II ("not necessarily threatened with extinction", in which trade must be controlled to avoid use incompatible with their survival). A recent review of their populations suggests a need for better monitoring
Kerry slug it is in species of the related genus "Arion", the type genus of the family Arionidae. The gland above the foot, the suprapedal gland, is deeply imbedded in the tissues, and reaches far back. The cephalic (head) gland known as the Semper's organ is well developed, and shows as a pair of strong flattened lobes. The salivary and digestive glands are the same as those found in "Arion" species, but the vestigial osphradium (kidney-like structure) within the mantle chamber is more distinct than it is in "Arion" species. As for the various muscles within the slug, the cephalic retractors (muscles