moth

Caterpillars resembling bird defecations take wing as Weidemeyer's admirals

Aug. 24, 2022

Like the homely, warty toad transformed by a kiss to an enchanting prince, embarrassing excremental smears and lumps of who-knows-what metamorphose into delicate and lovely butterflies.

moth

Achemon sphinx moths' range is shrinking

Aug. 9, 2022

No doubt about it, sphinx moths are extraordinary; extinction is forever, and it would be tragic to lose such a remarkable group of moths.

paintbrush

Downy paintedcup adapts to changes in pollinators and root hosts across its range

July 8, 2022

The communities of pollinators and potential root hosts respond to climate change and the ever-increasing impact of humans on natural habitats.

Wilted primroses' petals turn pink and then red when temperatures rise in the morning.

Evening primroses show the complexities of floral fragrance

May 24, 2022

Some varieties have a citrus fragrance with a hint of spice, reminiscent of lavender, bergamot and lily of the valley; pollinators seem to like it.

packrat palace

Packrats build time capsules inside canyon walls

April 26, 2022

Although sandstone walls might look solid, they can be riddled with their residents’ long-lasting residue.

Foothills death camas

A rare relationship between death camas and death camas miner bees

April 1, 2022

Plant is deadly to animals, but one species of bee has a unique symbiosis with it.

Desert holly

Native Americans used desert holly for food, dyes and medicines

March 17, 2022

The San Rafael River cuts through the San Rafael Swell, forming the Little Grand Canyon. In early April, we were hiking upstream in the canyon when we stopped for a rest and a snack and to assess the curtain of rain that appeared to be bearing down on us. My...

Tthree different variations of Redpolls shown in the picture are the Hoary Redpoll (left), the Common Redpoll (center), and the Lesser Redpoll (right).

Redpolls reflect continuous variation influenced by supergene in one species

March 9, 2022

As always, unexpected and important discoveries prompt new questions and suggest new lines of research.

ruddy

Ruddy copper butterflies are sexually dimorphic for color and color vision

Feb. 2, 2022

It seems that reproductive success and sexual dimorphisms for dorsal color and for vision are inexorably interdependent in ruddy copper butterflies.

solstice

Winter solstice dawn from Flagstaff Mountain amphitheater

Jan. 5, 2022

My viewing of winter solstice dawn was quiet, but I had the conviction that this sort of observation reached far back into history, all around the world.

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