Floating around in the beautiful back lake at Mt Coot-tha Botanical Gardens are a few of these things:
They're floating cane toadlet and tadpole traps! Apparently there are loads of cane toads breeding in this lake but these traps are proving to be very effective. They've only been in for a couple of months but they've already been able to remove 45,000 of them. They contain a pheromone lure derived from the toad that draws them in and then they can't get out. They need to manufacture a garden pond version.
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