A "sneaky" invasive species with a poison sting capable of sending some people to the hospital continues to spread across the United States, experts warn. Asian needle ants were first detected in the Southeastern United States in the 1930s but went "relatively unnoticed" until the past 20 years,

Connecticut’s warming climate is allowing invasive insects that previously couldn’t survive the state’s harsh winters to now have a greater chance of survival.

Joro spiders may pop up all across your backyard, but these new invasive species could cause more health issues. What to know about the Asian needle ant.