Why do coyotes leave poop in conspicuous places?

Dec. 5, 2023

Like other animals, they are marking their territory, and being subtle about it would not serve their purposes.


Rosy paintbrush hybridizes, producing a range of bright colors

Nov. 28, 2023

The stunning flower, seen in Colorado’s high country, might be a distinct species or not; regardless, this is science at work.

purple western aster

Western aster gives hope for managing cheatgrass

Nov. 14, 2023

In Rabbit Valley near the Colorado-Utah border, some signs indicate that aster could stymie the dominance of the invasive species.

field of rice grass

A close look at Indian rice grass

Sept. 18, 2023

Native Americans used the staple for many foods for thousands of years, and it is now recognized as the state grass in Nevada and Utah.


Can you eat this mushroom or not?

July 18, 2023

It’s complicated; shaggy parasols can be eaten by some people, not all, but only after cooking. I advise against taking a risk.


Alcove columbines thrive on vertical stone walls

June 15, 2023

My hope for this expedition to the San Rafael Swell was to find flowers on scarlet monkeyflower, which grows in hanging gardens on vertical walls.

Claytonia rosea

Why are pink spring beauties varying shades of pink?

May 17, 2023

Pink spring beauties are ephemerals that sustained the earliest Americans, and selection pressure may hold the clue to color variation.

Image of white buffaloes

What the White Buffalo Calf tells us about Indigenous history

May 11, 2023

Native Americans have been associated with bison in North America for more than 15,000 years.


Sagebrush has an arsenal of defenses for an army of herbivores

March 15, 2023

That potent aroma prized by humans serves many functions for the plant.

Image of the Colorado Plateau

Mormon tea has no flowers or leaves but lots of history

March 3, 2023

Mormons used the plant to make a caffeine-free hot drink, and Native Americans used it to relieve congestion.