Large herbivores dominated the Earth's land ecosystems for several million years before suffering significant extinctions and declines over the past 100,000 years or so.
"If allowed to spread, crazy worms could cause serious damage to horticultural crops and the forest ecosystem in Maine," the state's Department of Agriculture, Conservation and Forestry said.
The drug lord imported four hippos into the country, which were housed in his private zoo.
Invasive species are now a "huge" issue in national parks and the problem is "far, far worse now" than it was twenty years ago, researchers say.
The discovery could have important implications in the fight against the invasive bagrada stink bug, which has spread across the world.
The northern snakehead, an invasive species that can survive on land, has been discovered in Georgia.
Delaware residents have been encouraged to kill the spotted lanternfly, an invasive species of destructive insect found in the northern part of the state.
Scientists say the invasive species Salsola ryanii may spread even further as a result of climate change.
The reptile was the second largest snake ever removed by a member of the Florida Fish and Wildlife Conservation Commission's Python Action Team, the agency said.
Aquatic invasive species pose a grave and growing threat to the Yellowstone ecosystem.
Presence of lake trout has impacted bald eagles, ospreys and bears, study shows.
With the rise of globalization comes the inevitable rise of the alien ant.
The remarkable adaptation could save this endangered population.
A study shows that developing nations are the most vulnerable to damage from invasive species, and countries at the center of global trade are the most responsible for the spread of the pests.