146 Something is killing U.S. birds.
It’s not cicadas
Birds with crusty eyes and neurological
damage found in nine states and Washington,
D.C. By D. Malakoff and E. Stokstad147 Journal retracts paper claiming
COVID-19 vaccines kill
Editors at Va c c i n e s quit, protesting
“irresponsible” study
By M. WadmanFEATURES
148 The ghosts in the museum
Anthropologists are reckoning with collections
of human remains —and the racism that built
them By L. Wade
153 Charleston honors Black ancestors,
with both science and ceremonyBy L. WadeNEWS
IN BRIEF
140 News at a glance
IN DEPTH
142 Can immune responses
predict which vaccines work best?
Elusive “correlates of protection” could lead
to approvals of boosters or new vaccines
without big clinical trials By J. Cohen
143 Smell proves powerful sense for birds
New studies highlight underappreciated
role of avian olfaction By E. Pennisi
145 Sex and gender missing in
COVID-19 data
Despite suggestions of differential effects,
most clinical trials don’t report results by sex
By C. O’Grady
157 A touch more unconventional
Strong antiferromagnetic interactions
are revealed in superconducting
nickelates By E. Benckiser
REPORT p. 213158 A flexible and springy form of ice
Single-crystal ice microfibers recover
their shape after bending to near
their breaking limit
By E. M. Schulson
RESEARCH ARTICLE p. 187159 Host genetics influence
the gut microbe
Longitudinal data from nonhuman primates
reveal widespread gut microbe heritability
By L. Cortes-Ortiz and K. R. Amato
RESEARCH ARTICLE p. 181160 Boosting stem cell
immunity to viruses
A newly discovered isoform of Dicer
protects stem cells by enhancing
antiviral RNA interference
By S. Shahrudin and S.-W. Ding
REPORT p. 231162 Networks of SARS-CoV-
transmission
Individual and network heterogeneity
should inform respiratory pandemic
responses By M. Cevik and S. D. Baral164 Retrospective:
Richard Ernst (1933–2021)
Chemist who made magnetic
resonance a powerful tool
By G. Bodenhausen223
sciencemag.org SCIENCECREDITS: (ILLUSTRATION) JOHNALYNN HOLLAND; (PHOTO) MICHAEL QUINTON/MINDEN PICTURES9 JULY 2021 • VOLUME 373 • ISSUE 6551CONTENTS
148
INSIGHTS
PERSPECTIVES
154 A shift in taste
The evolution of sugar perception in
songbirds began with a savory receptor
By F. K. Barker
REPORT p. 226155 Sowing the seeds of leukemia
before birth
Distinct cooperation between a mutated gene
and trisomy 21 triggers leukemia in utero
By I. Roberts and P. Vyas
RESEARCH ARTICLE p. 179132 9 JULY 2021 • VOL 373 ISSUE 6551