Research shows introduced pest plants and animals are costing the country $25bn a year

Australia could face a wave of plant and animal extinctions by 2050 unless it takes urgent action to address the threat of invasive species, according to a new report that finds the problem is already costing at least $25bn a year.

The research, by Australia’s national science agency the CSIRO and the Centre for Invasive Species Solutions, takes a once-a-decade look at the scale of the threat caused by rabbits, feral cats, toxic toads, weeds, diseases such as myrtle rust and other invasive pests.

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