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In page Cane toad:

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A fossil toad (specimen UCMP 41159) from the La Venta fauna of the late Miocene in Colombia is morphologically indistinguishable from modern cane toads from northern South America. It was discovered in a floodplain deposit, which suggests the R. marina habitat preferences have long been for open areas.[citation needed] The cane toad is a prolific breeder; females lay single-clump spawns with thousands of eggs. Its reproductive success is partly because of opportunistic feeding: it has a diet, unusual among anurans, of both dead and living matter. Adults average 10–15 cm (4–6 in) in length; the largest recorded specimen had a snout-vent length of 24 cm (9.4 in).