MISINFORMATION
Identifying deepfake
videos
Deepfake videos that have
been digitally manipulated,
from face swaps to filters, may
look authentic to the untrained
eye. As society debates the
ethics of such technology,
computer scientists are look-
ing for ways to help humans
and computer models better
discern authentic videos
from deepfakes. Groh et al.
used data from more than
15,000 human participants
to show that humans are on
average as accurate as the
leading detection model at
detecting deepfakes, but they
make different mistakes. The
researchers are hoping that the
differences they have identi-
fied can help in the design of
future models that benefit from
understanding the weaknesses
and strengths of humans. —YY
Proc. Natl. Acad. Sci. U.S.A. 119 ,
e2110013119 (2022).CELL BIOLOGY
Repairing
UV-damaged skin
Sunburn and prematurely aged
skin can be caused by exposure
to high levels of ultraviolet (UV)
radiation. Rognoni et al. exam-
ined UV damage repair processes
in human and mouse skin. Theauthors found that acute and
chronic UV exposure selectively
killed fibroblast cells in the
papillary dermis layer of the skin.
Live imaging and lineage trac-
ing showed that acute damage
was repaired by local papillary
fibroblast proliferation with little
need for fibroblast migration.
Chronic UV exposure instead ledto the recruitment and migration
of neutrophils and T cells into the
skin. These changes promoted
fibroblast survival, migration, and
damage repair. —SMH
eLife, 10 , e71052 (2021).TEXTILES
Keeping the sweat off
Hot weather requires unique
strategies for cooling the human
body. Recent advances have
included improving radiative
heat transfer through fabrics.
Alternatively, fabrics that wick
sweat can lower skin tem-
perature. Peng et al. developed
an integrated cooling textile
(i-Cool) designed to efficiently
wick and evaporate sweat. The
authors accomplished this by
integrating channels into the
fabric that quickly move sweat
from the skin to the surface.
The fabric also has enhanced
heat transport compared with
cotton. The strategy may lead
to other textiles that are more
comfortable to wear in hot
weather. —BG
Nat. Commun. 12 , 6122 (2021).DISEASE ECOLOGY
Surviving white-nose
syndrome
White-nose syndrome, an emerg-
ing infectious disease caused by
the fungus Pseudogymnoascus
destructans, has been devastating
bat populations since its introduc-
tion into North America in 2006.
However, some bat populations
have been able to rebound after
the epidemic. Grimaudo et al.
examined the roles of host traits
and environmental conditions on
white-nose syndrome severity
and the persistence of remnant
little brown bat (Myotis lucifugus)
populations. Using a fully factorial
translocation experiment, the
authors found higher bat survival
in established fungus-infected
sites than occurred during initial
epidemics, indicating that some
level of resistance emerged in
the bats. However, this effect
was highly dependent on local
temperature and humidity condi-
tions. —BEL
PHOTO: GRAPHBOTTLES/SHUTTERSTOCK Ecol. Lett. 10.1111/ele.13942 (2021).
Wetland loss increases the
cost of flooding and affects the
resulting insurance claims.SCIENCE science.orgUltraviolet radiation selectively kills fi broblast cells in the dermis of the skin.4 FEBRUARY 2022 • VOL 375 ISSUE 6580 511