One of "world's worst" weeds invading US Northeast
The toxic weed can prevent sunlight from entering the water and lead to decreased oxygen levels, killing fish and other species.
Kill starfish now to save Great Barrier Reef—Scientists
These starfish can each munch over 100 square feet of coral every year, so culling them can help degrading reefs recover.
Better Planet
American cities face mass termite invasion, scientists warn
"Our findings reveal that numerous invasive termite species could find suitable habitats in heavily urbanised and connected areas," the researchers wrote.
US being invaded by "time bomb" weed
"The longer it is dormant, we're more likely to ignore it," scientist Mohsen Mesgaran said, leading to their "eventual emergence as a serious invasive threat."
US Rivers Are Filling Up With Invasive Fish
Scientists found that invasive fish species are thriving, but pointed out that may not be good news.
Animal scientists thought was extinct in area spotted on camera
"In this part of Australia they have been regionally extinct for quite a long time," ecologist Michelle Hall said. "So that was a very exciting sighting."
Winter weather warning of "falling iguanas" issued for Florida
Iguanas can get so cold during the winter that they enter a state of torpor, losing their grip on the trees and falling.
"Stop wild horses being gunned down" petition nears 50,000 signatures
"Aerial shooting from helicopters remains the only viable method of control," ecologist Christopher Dickman told Newsweek.
People encouraged to freeze toads to death in national cull
Invasive toads have spread across Australia, outcompeting native wildlife for food and producing toxins that can kill predators.
News
Lake Mead infestation could impact water 800 miles away
The invasive species, quagga mussels, can cause millions of dollars in damage.
Florida "ground zero" for invasive species in the US—Top threats revealed
The crab-eating macaque monkey was one species deemed to pose a great threat to Florida.
Stunning video shows "menacing" 40-pound boa constrictor snake captured
Boa constrictors, like the one captured in Miami-Dade County, are not illegal to own in Florida despite being invasive species.
US Government wants 500,000 owls to be shot dead in cull
13,397 barred owls will be killed every year in the first decade, 16,303 a year in the second, and 17,390 birds annually in the third.
Feral horses shot by helicopter in plans to cull 14,000
To stem the growing population of feral horses or "brumbies" in an Australian national park, helicopters are being used to cull thousands.
Invasive feral cats could be wiped out using genetic modification
"Gene drives literally 'drive' modified genes through a species by ensuring they are inherited," researcher Andrew D. Maynard told Newsweek.
Out-of-control invasive "super pigs" set to cross US border
Half-boar, half-pig hybrids that reproduce incredibly quickly are making their way south towards the Canada-U.S. border.
Alarm as cow-killing ticks spread to 19 states
"Asian longhorned tick was discovered in New Jersey in the fall of 2017 on a sheep farm," pest management expert Joellen Lampman told Newsweek.
Eat "America's most unwanted fish" to save native species, scientists say
Alongside outcompeting other fish, some invasive carp are—bizarrely—known to leap into unlucky water-skiers, knocking them out.
Massive lizards wreaking havoc in South Carolina offered to people as pets
The reptile is touted for its docility and long-lasting bonds.
Colombia goes to war with Pablo Escobar's hippos
The notorious drug lord smuggled four hippos into the country to keep at his luxurious country estate. Now their descendants are considered an invasive species.
Video shows house buried by "towering walls of tumbleweeds"
The tumbleweeds were blown by 95 mph winds in Montana on Tuesday.
Crystal clear water spells trouble for historic shipwrecks
An invasive species could eventually reduce the shipwrecks to rubble.
Lake Tahoe's ecosystem facing invasive threat
This marks the first time that these quickly reproducing New Zealand mud snails have been found in Lake Tahoe.
Army of hundreds of millions of ants colonizes beach
"It is estimated that there are at least a few hundred million ants in this entire nest," ant specialist Luc Gomel said.
Invasive raccoons are wreaking havoc on Europe's wildlife
The animals are considered an invasive species in Belgium, where an estimated 60,000 of them hunt down and eat native wildlife, and also spread diseases.
Bees facing another threat as cousin of "murder hornet" appears in U.S.
The non-native yellow-legged hornet, a fearsome predator of honeybees, has been detected in the United States for the first time.
Oklahoma boy finds piranha-like fish in pond: "terrifying"
Pacu are relatives of the piranha, and are an invasive species in the U.S., often being released into waterways after growing too large as pets.
Watch Florida student wrestle 19ft python as it lunges and coils around him
The python is one of the largest in state of Florida, far exceeding the average size for the invasive species.
Invasive jellyfish washes up on Texas beach
The Australian spotted jellyfish can clear 50 cubic meters of plankton-filled water in a day, making them formidable feeders that can out-compete native species.
Feral cats to be poisoned to save other species from extinction
After decimating native species, invasive feral cats in Australia are now being poisoned using a spray gel to cull their effects on native wildlife.