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In 1957, officials released one male and one female wild sheep on a remote Kerguelen island; 46 years later, their isolated population had higher genetic diversity

A single pair of mouflon introduced to Haute Island in 1957 founded an isolated population. Researchers observed genetic diversity increasing over 46 years, defying standard drift models. This unexpected pattern was linked to a high twinning frequency in the mouflon herd. Selection related to reproductive costs may have maintained genetic diversity despite small founder size….

Joe Biden’s cancer has spread further, says Hunter: ‘It’s very painful’

Former US President Joe Biden’s prostate cancer has spread to other parts of his body and is causing him pain, even as he continues to speak out on public issues, his son Hunter said in an interview. In a wide-ranging interview with the BBC broadcast late Friday, Hunter Biden grew emotional as he discussed his…