Not closely related to North American geese, this is an inhabitant of jungle rivers. Though it occupies a large range in northern South America, it is classified as Near Threatened. Despite a reputation for not tasting very good, it is still hunted, but deforestation is a greater threat since it nests in trees in the wild. It is found in only a few of the world's zoos, but several have made a commitment to breeding it. During their noisy territorial defense displays, they assume such an upright position that it looks as if they might fall over backwards.
The Lyretail anthias, also known as the Scalefin anthias, is found in the Indo-West Pacific, often in large aggregations. The brightly colored pink males and orange females can be seen feeding on zooplankton throughout the day. Like other members of the Serranidae family, the Lyretail anthias is hermaphroditic. Males choose a harem of females with which to mate. In the absence of a male, the dominant female will become a male. In this case, the female's orange coloration will change to pink and her dorsal fin will become more ornate.
Compared to some other toucans, this species has a rather limited range in the north-western corner of South America, found in parts of Venezuela, Colombia, Ecuador, Peru and Brazil. It has never been common in zoos and was not bred in captivity until 2009, at the DWA, where specimens were received through the cooperation of the Venezuelan organizations PROFAUNA and FUNZPA. While it may appear bewilderingly similar to other aracaris, the two complete black bands across its chest distinguish it from any other toucan.