Platypuses face threats from drought, entanglement in yabby traps, and river degradation across their southeastern Australian distribution.
Drowning in yabby traps causes suffocation over minutes to hours. River drought conditions concentrate animals in shrinking pools increasing competition and disease. Water extraction for agriculture reduces platypus foraging habitat. Entanglement in discarded fishing line causes drowning or limb loss. Platypuses in declining river systems show reduced body condition and reproductive success.