Leiopelma archeyi

**Archey's Frog (Leiopelma archeyi)** Archey's frog is one of New Zealand's four endemic primitive frogs, representing an ancient lineage that has remained largely unchanged for millions of years. This small amphibian measures 31-37mm in length and displays brown, green, or reddish coloration with distinctive toe discs for climbing. Unlike most frogs, Archey's frog lacks a tadpole stage, with young developing directly from eggs into miniature frogs. Males carry developing young on their backs, and the species exhibits minimal vocalization compared to other frogs. These frogs play important roles as both predators of small invertebrates and prey for native birds and reptiles. Originally distributed across New Zealand's North Island, Archey's frog now survives in only a few isolated populations in the Coromandel Peninsula and Whareorino Forest. The species inhabits native forest environments, particularly areas with dense vegetation, fallen logs, and rock crevices that provide essential moisture and shelter. The species faces severe threats from chytrid fungus (Batrachochytrium dendrobatidis), which has caused dramatic population declines since the 1990s. Habitat fragmentation, introduced predators including rats and possums, and climate change compound these pressures. The frog's limited dispersal ability makes recolonization of affected areas extremely difficult. Conservation efforts include captive breeding programs, predator control in remaining habitat areas, and translocation attempts to establish new populations in predator-free environments. Researchers continue monitoring existing populations and studying disease resistance. The outlook remains precarious, with continued population fragmentation and ongoing disease pressure. Without sustained intensive management, this ancient species faces potential extinction within decades.