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AAP
AAP
Environment
Abe Maddison

Explosion in croc numbers triggers feral feast fallout

For every kilometre of NT river, there are 25 times more crocodiles than there were 50 years ago. (Dean Lewins/AAP PHOTOS)

Northern Australia's massive crocodile population is munching its way through huge numbers of feral pigs, with the apex predator's changing diet having a significant impact on the environment.

Since they were protected in 1971, croc numbers in the Top End have exploded 25-fold from one every five kilometres of river to more than five per kilometre.

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