Brown widow spiders, which are invasive to North America, are wiping out black widow populations in the U.S. by aggressively attacking them for no clear reason, a new study shows.
Researchers accidentally discovered that GPS-tagged mammals can help locate Florida's invasive Burmese pythons, which are destroying local ecosystems.
Jewel damselfish living on coral reefs surrounding rat-infested tropical islands have become less territorial and less aggressive due to a bizarre ecological link between the two species: bird poop.
In an epic tug-of-war, it took the British angler 25 minutes to haul the monster fish, nicknamed The Carrot, to land.
In a viral Instagram video, pathologists remove a dead 5-foot alligator from the body of an 18-foot Burmese python.
Crazy ant colonies in North America are being driven to extinction by a fungus that targets the invasive pest species.
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