A grizzly bear c. 1955

The Scientist Who Wanted Grizzly Bears Eliminated

In the late 1960s, two highly visible deaths from grizzly bear attacks led to a debate about whether humans and bears could coexist.
The Bobcat Fire burns through the Angeles National Forest on September 11, 2020 north of Monrovia, California.

A Recipe for Ancient Wildfires

The earliest wildfires raged long before humans, and they only needed three ingredients to get started.
A person taking a photograph of a mushroom on their phone.

iNaturalist and Crowdsourcing Natural History

The citizen-science app iNaturalist lets you record observations of plants and animals. The data can be used to study biodiversity.

Freshwater Fish of Virginia

Roanoke College's Ichthyological Collection of over 800 freshwater fish documents the biodiversity we're losing at an alarming rate.
Aeroplankton

Aeroplankton: The Life in the Air We Breathe

Just as the ocean is full of plankton, the air we breathe teems with microorganisms.
A woman's hands inspecting a cannabis plant

The Environmental Downside of Cannabis Cultivation

Wide-scale cannabis cultivation is causing environmental damage. Federal regulations could change this.
A large tree with moss-covered roots.

How Trees Can Save Lakes From Algae Blooms

In addition to cleaning air pollution, trees absorb excess nutrients from soil, preventing algae blooms in waterways.
Frozen lake Baikal near Olkhon island

Exploring Lake Baikal

The world's largest, deepest freshwater lake is home to hundreds of species that don't live anywhere else on Earth. But it's threatened by climate change.
Callery Pear Trees in bloom

When a Cultivated Tree Goes Rogue

The Callery pear was meant to help prevent fire blight from destroying the commercial pear industry. Then it became invasive.