In 1978, just 10 to 15 cane toads were moved to Ishigaki Island. Decades later, their population increased to 20,000 with surprising evolutionary change |
On Ishigaki Island, cane toads have been living in conditions quite different from those faced by the populations from which they came. The island is warm, wet and separated from mainland habitats, and the animals introduced there in the late 1970s have now had several decades to establish themselves. When scientists compared these Japanese toads…
