World's heaviest insect brought back from the brink
Key Points:
- The wētāpunga, New Zealand's heaviest insect, has made a significant recovery from near extinction due to an innovative breeding and conservation program.
- Over 11,000 wētāpunga have been released into predator-free islands and fenced sanctuaries since 2010, establishing successful multi-generational populations.
- Once endangered, the species was reclassified in 2022 as "Threatened — Nationally Increasing," reflecting its improving status in the wild.
- Conservationists used novel husbandry techniques, including specialized diets and communal housing, to rear large numbers of the insects for release.
- Experts hope to apply the successful strategies used for wētāpunga to other endangered invertebrates in New Zealand, such as the Canterbury knobbled weevil and native stag beetles.