Requiem for the Christmas Island Shrew It never weighed more than a spoonful of sugar. Five or six grams of life, soft-furred and sharp-nosed, darting among the roots and leaf litter of a tiny island in the Indian Ocean. At night, its voice—a thin, high cry, part bat and part whisper—once filled the forest of Christmas Island. Now the forest is silent. Australia’s only shrew, Crocidura trichura, has been declared extinct. Few knew it lived, fewer still that it was Australian. The shrew was a stranger in a land of marsupials, a migrant that arrived tens of thousands of years ago, likely clinging to a raft of vegetation from what is now Indonesia. For millennia, it thrived unseen in the island’s rainforest, feeding on beetles and sheltering beneath roots. When British naturalists arrived in the 1890s, they found the forest alive with its shrill chatter. “Extremely common,” they wrote. Within a generation, it was gone. The black rats came first, stowaways in bales of hay. With them came a parasite, Trypanosoma lewisi, that swept through the island’s naïve mammals like a plague. Within years, both native rats were extinct, and by 1908, the shrew too was presumed lost. Its name lingered only in museum drawers and footnotes. Yet it was not quite gone. In 1958, two shrews surfaced as bulldozers cleared forest for mining, seen briefly before being forgotten. Then, in 1984, came a small miracle: a live female, discovered in a clump of fern. For a year she lived in a terrarium, tended by biologists who fed her grasshoppers and hope. Months later, a male was caught—sickly, short-tempered, and dead within weeks. The female lingered alone until she, too, was gone. No others were ever found. Searches in the decades that followed brought only silence—the kind that deepens until it becomes its own proof. In 2025, the Red List made official what many already knew in their hearts: Crocidura trichura was no more. To some, the loss of a creature so small may seem inconsequential. Yet its passing adds one more tally to Australia’s unenviable record—the thirty-ninth mammal species lost since colonization. The shrew’s story is a familiar one: an island undone by rats, cats, ants, and the heedless movement of the world. It asked for little: a patch of soil, a few beetles, a quiet forest. And it leaves behind a silence that, once heard, cannot be forgotten. 💐 Full piece: lnkd.in/gwszmzcf