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Genetic Rescue Needed for Kangaroo Island's Koalas

9/28/2025

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Summary

Story summary

Kangaroo Island, South Australia hosts a disease-free koala population—a conservation success—but genetic testing shows low variation and high inbreeding.
The population originated from fewer than 24 koalas moved in the 1920s, limiting genetic diversity.
Mainland koalas face severe decline from habitat loss, hunting, and diseases, now endangered.
Genetic rescue is proposed to boost island genetic health, with monitoring urged.

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Story summary

Kangaroo Island, South Australia hosts a disease-free koala population—a conservation success—but genetic testing shows low variation and high inbreeding.
The population originated from fewer than 24 koalas moved in the 1920s, limiting genetic diversity.
Mainland koalas face severe decline from habitat loss, hunting, and diseases, now endangered.
Genetic rescue is proposed to boost island genetic health, with monitoring urged.