Crocodiles falling victim to cane toads
Scientists from the University of Sydney fear cane toads are wiping out freshwater crocodiles in the Northern Territory.
A team of researchers has been recording the number of crocodiles in the Victoria River, south-west of Katherine.
They're also noting the presence of other wildlife, like cane toads.
The university's Dr Mike Letnic says the number of crocodiles in the area has fallen dramatically.
"This is the third time I've come here. I came here once before the cane toads arrived, and then I've come here twice since and the population has crashed.
"It's a great tragedy. The crocodile population here has been reduced by 70 per cent."