After decades of mystery surrounding its existence, a rare animal once believed to be extinct has been confirmed on remote trail cameras in northern California, offering a thrilling sign of wildlife resilience. Scientists say the coastal marten — a small carnivorous mammal that nearly vanished from the state — was captured in recent footage and DNA samples collected via hair snares, validating that wild populations still persist in the region. The discovery has brought renewed hope for the species and underlines the value of modern conservation tools. Once targeted nearly to extinction during the 20th-century fur trade, coastal martens were...