Australian researchers investigating the hunting habits of feral cats discovered that the felines were benefitting from an unexpected ally: intense fires.
From cane toads to kudzu, invasive species (sometimes called alien species) are those that aren't native to an ecosystem and that cause harm to native species, local economies or humans. Invasive species can be terrestrial species, like the pythons invading Florida's Everglades, marine, like the lionfish invading Caribbean waters, or pathogens. Invasive species can cause harm by out-competing native species, or preying on them. They can sometimes increase fire risks or contribute to erosion. Some invasive species have been introduced accidentally and others, like kudzu, were introduced on purpose and then spread more widely than originally intended. Invasive species are found in every type of habitat and are typically difficult to eradicate. Read more about invasive species around the globe and efforts to stop their spread.
The Australian government recently announced an unusual initiative to eradicate a long-standing animal pest problem.
Tyrannosaurus rex, king of the dinosaur age, wasn't a North American native, a new study suggests. And once the beast came onto the scene it muscled out all its competitors and took over.
The king crab could soon take over a whole new kingdom, and it has global warming to thank for the conquest.
Australia's Adele Island appears tranquil from space, but this sandy spit is the site of efforts to eradicate an invasive rat population that devastates seabird populations.
A giant python, about as long as a shipping container, was captured in Everglades National Park in Florida earlier this month (July 9).
A throng of giant flying fish that catapulted themselves towards oncoming rowers were not coordinating a fishy assault but were probably just spooked by the boat, science suggests.
They multiply like … fish! Apparently, a handful of goldfish dumped into a lake in Boulder, Colorado, just three years ago have reproduced and now number in the thousands.
Thousands of goldfish were spotted in March in Teller Lake #5 off Arapahoe Road in Boulder, Colorado, and biologists are concerned. Here's a look at the fish-filled lake.
Killer shrimp, creatures that indiscriminately slay other animals without eating them, may soon join the list of invasive species living in the Great Lakes, a new study finds.
Once down to only 15 animals, giant tortoises on Espãnola, a tiny Galápagos island, now number about 1,000, making the reptile one of conservation's greatest success stories.
An amazing video from the Florida Keys shows a curious domestic cat nearly become a midnight snack for an American alligator.
An invasive species of camel cricket from Asia is now far more common in American basements than the native variety, a citizen science project found.
When other predatory fish quit stalking their prey to look for easier targets, lionfish just keep on killing.
A genetic modification that creates male-only populations could give us a new weapon against invasive fish such as carp that plague our waterways.
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