On the islands of Wallacea, one of the world’s hottest biodiversity hotspots, a quiet yet deadly invasion is underway. The poisonous Asian common toad’s (Duttaphrynus melanostictus) journey from island to island has left a trail of dead native species in its wake. If this island-hopping is left unchecked it could lay waste to one of the world’s last remaining ecological gems and threaten iconic species like the Komodo dragon, warn scientists in a study published in Global Change Biology.

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Banner image by Franco Andreone.