Asian tiger mosquitoes are pushing their geographical limits by laying eggs that don't hatch right away.

Trap, neuter, return programs for free-roaming cats are controversial. New research says they can reduce populations and suffering, but only at scale.

Invasive pests kill so many trees each year, they cut the carbon storage of forests by the equivalent of emissions from 5 million cars.

Male lampreys attract females with a special pheromone called spermine, an odorous compound found in semen, researchers report.

A mosquito native to Missouri has fewer parasites when it shares its watery home with an intruder, research finds.

Invasive species are typically harmful, but they're an "evolutionary rescue" for the Gulf killifish.

An invasive fungus has led to the decline of 501 species of amphibians. Scientists say we're running out of time to come up with a solution.

In the coming decades, shipping growth will far outweigh climate change as a driver of the spread of invasive pests.

To control invasive, self-cloning Asian longhorned ticks, scientists have to tell them apart from two near-identical species. A new visual guide will help.

Lizards that hid from predators by blending in have quickly adapted new strategies to survive invasive fire ants.