In the 1980s and 1990s, the hardy redclaw crayfish was exported from Australia around the world. But escapee yabbies have become a nightmare.
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Platypuses are drowning in Australian waterways, tangled in fishing line and trapped in closed nets meant for freshwater crayfish or yabbies. But we can fix this.
New research investigating the yabby diets found just how crucial these crayfish are to aquatic ecosystems.
