Young dragonflies eat insects, tiny fish, tadpoles and worms ... These substances can trickle into nearby water sources, harming dragonfly larvae living there. Protecting and cleaning wetlands ensures ...

Colorful, fast and acrobatic, dragonflies are a pretty sight when you spot them in nature. They're also invaluable indicators of mercury pollution.

Dragonfly larvae are prey to fish and amphibians, possibly other insect predatory larvae. The adults are hunted by birds, frogs and will get caught in spiderwebs.

Insects are scared to death of fish Date: October 28, 2011 Source: University of Toronto Summary: The mere presence of a predator causes enough stress to kill a dragonfly, even when the predator ...

Bergen County's Mosquito Control division, which was founded in 1914, has 23 members to cover the county's 70 towns. They have used the fish for about 30 years all over the county, Rendine said.

Dragonfly larvae sampled from Cape Cod and Minuteman National Historical Park recently helped tell a much bigger story about mercury pollution in the U.S. A national study published this week in ...

From 2009 to 2018, more than 4,000 citizen-scientists helped collect almost 15,000 dragonfly larvae from more than 450 sites in 100 national parks across the U.S.