Wildlife biologist David Wiens was extremely nervous the first time he shot an owl. He steadied himself in the evening darkness of an Oregon fire road, pointed his shotgun at a big barred owl perched ...

Designing and constructing mechanical systems to operate at a microscale are challenging tasks. Yet, organisms such as fruit flies perform many of the desired movements and functions of a microscale ...

The COVID-19 pandemic highlighted the importance of gathering information on pathogen characteristics as early as possible when an outbreak strikes. But it also underscored how quickly much of that ...

Edited by Donald Ort, University of Illinois at Urbana Champaign, Urbana, IL; received December 10, 2024; accepted January 28, 2025 ...

Contributed by J. C. Séamus Davis; received November 1, 2024; accepted February 10, 2025; reviewed by Yasutomo J. Uemura and Han Yan ...

In the spring of 2022, the Calf Canyon/Hermit’s Creek fire burned over 300,000 acres in New Mexico (1), including terrain near the Rio Gallinas School for Ecology and the Arts in Las Vegas, New Mexico ...

Contributed by M. Brian Maple; received October 1, 2024; accepted February 13, 2025; reviewed by Satoshi Fujimoto and Xiaolong Liu ...

Y.D. and M.B.M. were supported by the National Nuclear Security Administration under the Stewardship Science Academic Alliance Program through the US Department of Energy (DOE) under Grant ...

Illustration of the reorganization of jaw muscles and the skull following an increase in brain size during bird evolution. The avian skull underwent significant modifications during the evolution of ...

P. I. Fields, R. V. Swanson, C. G. Haidaris, F. Heffron, Mutants of Salmonella typhimurium that cannot survive within the macrophage are avirulent. Proc. Natl. Acad ...

We thank Xiaoju Li, Haiyan Yu, Xiaomin Zhao, and Sen Wang from Core Facilities for Life and Environmental Sciences of Shandong University for their assistance in X-ray diffraction. We also thank the ...

The authors note “After publication, we observed significant variation in model performance across trials including stochastic and unpredictable behavior during ...