Anzuetoi arboreal alligator lizard Agua, inhabiting cloud forests on the mountain. "A. anzuetoi" is a diurnal tree-dwelling lizard. Dominant males exhibit territorial behaviour. Anzuetoi arboreal alligator lizard Anzueto's arboreal alligator lizard (Abronia anzuetoi ) is a species of lizards in the family Anguidae. The species is endemic to Volcán de Agua in Guatemala. The specific name, "anzuetoi" is in honor of Guatemalan naturalist Roderico Anzueto, who collected the holotype. The extent of occurrence of "A. anzuetoi" is approximately 24 km (9.3 mi), and thus the species is considered Vulnerable by the IUCN. Anthropogenic impact is minimized by the fact that its native habitat has
Sexual dimorphism in non-human primates to the likelihood of higher vulnerability to predators. Another hypothesis suggests that arboreal primates have limitations on their upper body size, given that larger body size could disrupt their usage of terminal branches for locomotion. However, among some species of guenons ("Cercopithecus"), arboreal blue monkeys ("C. mitis") appear to be more sexually dimorphic than terrestrial vervet monkeys ("C. aethiops"). It has been hypothesized that niche divergence between the sexes attributes to the evolution of size dimorphism in primates. Males and females are known to have different preferences for ecological habitat due to different reproductive activities, which could possibly lead to