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“He was one of our most successful bettong killers,” Moseby said.

In Australia in recent decades, the bilby, the bettong, or rat kangaroo, the brush-tailed possum and other medium-sized mammals all disappeared from the Western Desert.

“You want a bettong to watch its mate get eaten by a cat and think, ‘Oh, geez, cats are scary,’” West says.

After those have been erected, locally extinct mammals like the greater bilby, burrowing bettong, Western quoll, and Western barred bandicoot, will be reintroduced.

Many mammals, including the northern bettong, were at risk from introduced predators, she said.