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The original was posted on /r/todayilearned by /u/CaravelClerihew on 2025-05-19 04:09:21+00:00.

Original Title: TIL about feline grooming traps. Used to control invasive cats in Australia, the trap identifies and sprays cats with a toxic gel, which the cat ingests while grooming, eventually killing it. The gel is derived from a chemical that Australian native plans produce and is safe for native animals.