‘Tree farts’ contribute about a fifth of greenhouse gases from ghost forests

If a tree farts in the forest, does it make a sound? No, but it does add a smidge of greenhouse gas to the atmosphere. Gases released by dead trees…

Catnip repels insects. Scientists may have finally found out how

A whiff of catnip can make mosquitoes buzz off, and now researchers know why. The active component of catnip (Nepeta cataria) repels insects by triggering a chemical receptor that spurs…

Modified genes can distort wild cotton’s interactions with insects

Cotton plants native to Mexico’s Yucatan Peninsula may all look the same — unkempt and untamed bushes with flowers that shift from pale yellow to violet as pollinators visit them.…

A reeking, parasitic plant lost its body and much of its genetic blueprint

For most of their lives, plants in the Sapria genus are barely anything — thin ribbons of parasitic cells winding inside vines in Southeast Asian rainforests. They become visible only…

Corals’ hidden genetic diversity corresponds to distinct lifestyles

Stony corals that build reefs have been hiding their diversity in plain sight. A genetic analysis of the most widespread reef coral in the Indo-Pacific revealed that rather than being…

These are the 5 costliest invasive species, causing billions in damages

Invasive species can wreak havoc on local ecosystems. Cleaning up that biological wreckage comes at a big price. These invaders, often thrust into new environments unintentionally (or intentionally, to combat…

Weather radar shows 30 metric tons of grasshoppers swarmed Las Vegas one night

The dazzling lights of Las Vegas are meant to attract. And on one summer night, they did just that, luring millions of grasshoppers— a whopping 30.2 metric tons’ worth. That…

How kelp forests off California are responding to an urchin takeover

Joshua Smith has been diving in kelp forests in Monterey Bay along the central coast of California since 2012. Back then, he says, things looked very different. Being underwater was…

Simple hand-built structures can help streams survive wildfires and drought

Wearing waders and work gloves, three dozen employees from the U.S. Department of Agriculture’s Natural Resources Conservation Service stood at a small creek amid the dry sagebrush of southeastern Idaho.…

A robot arm toting a Venus flytrap can grab delicate objects

A new robotic grabber is ripped straight from the plant world. The device, made with a severed piece of a Venus flytrap, can grasp tiny, delicate objects, researchers report January…