Euan Ritchie /The Conversation Beyond ghoulish costumes and mountains of lollies, Halloween is rooted in celebrating nature. It originated in the Celtic pagan tradition of Samhain, marking the bounty of the autumnal harvest and transition to the dark depths of winter. Fast forward to 2025, and Halloween is a commercial juggernaut expected to exceed $13 billion in spending in the US alone. It’s also one that can cause serious environmental harm, generating masses of plastic and food waste, and disturbing and harming wildlife. This year, let’s celebrate nature’s spookiest and most gruesome wildlife with an environmentally-friendly Halloween. Move aside werewolves, headless horsemen, witches and warlocks, here are ten of the most marvelous and macabre animals that will truly turn heads
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