Toads threaten fragile wetlands

Cane toads are a major threat in northern Australia, now they have hitched a lift on floodwaters through the channel country-- and are threatening southern Australia.

Cane toads are a major threat in northern Australia, now they have hitched a lift on floodwaters through the channel country-- and are threatening southern Australia.

Biologists believe millions of cane toad eggs have been swept downstream - into fragile wetlands.