ecology

Feeding the Hawks

By Eric Dinerstein / On February 23rd, 2015

Cooper's Hawk. Photo by Tom Talbott, used under Creative Commons licensing.

Opening Weekend at Yellowstone Association Institute

By Meghan Bartels / On February 18th, 2015

Rose Creek. Photo courtesy of Yellowstone Association Institute.

The End and Beginning of the Arctic

By Edward Struzik / On February 9th, 2015

A snowy owl at an airport in British Columbia.

#ForewordFriday: Eight-Foot-Long Beavers, Scimitar Cats, and Woolly Mammoths Edition

By Meghan Bartels / On February 6th, 2015

#ForewordFriday: On the Trail of Wolves Edition

By Meghan Bartels / On January 16th, 2015

Wolves in Yellowstone.

The Grizzly Bears of Glacier National Park

By Emily Monosson / On January 14th, 2015

A grizzly bear in Alaska.

While We're Away ... Enjoy These Field Notes Highlights

By Meghan Bartels / On December 23rd, 2014

Photo by Rob Lee, used under Creative Commons licensing.

Reposted from the Chasing the Red Queen blog with permission. The concept of cross-resistance is well known in the medical world and in research on bacteria. The idea is that when a bacterial strain becomes resistant to one antibiotic, it can become resistant to another similar antibiotic even though the bacteria has never been exposed to the second antibiotic.

The Carnivore Way: All Who Wander Are Not Lost

By Cristina Eisenberg / On December 10th, 2014

This female wolf wandered from Yellowstone to the Grand Canyon. Photo courtesy Arizona Game and Fish Department.

Raven's Roost

By Eric Dinerstein / On December 2nd, 2014

Ravens are hardy birds and remain in the Maryland region through the winter.