ScienceFeral Sheep on Campbell Island Evolved Unique Traits Since 1931
In 1931, over 4,000 sheep were abandoned on Campbell Island, a remote sub-Antarctic island south of New Zealand, after farming ceased. Initially introduced in 1895, the sheep population peaked at 8,000 but declined due to harsh conditions. By 1961, only 1,000 remained, but numbers rebounded by 1969 due to warmer climate and vegetation recovery, leading to unique fleece and breeding traits.
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