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Autophagy is a highly regulated process about which relatively little is known, particularly concerning the transcriptional control of autophagy regulation. A new study identifies a key regulator of the expression of autophagy-related genes, thereby providing insights into the signalli...
The global spread of our species has led to a massive loss of terrestrial species, which dramatically changed the size distribution of land-based fauna and disrupted its ecological function. The less readily accessible ocean biotopes have so far been spared this fate, but lessons from ...
In contrast to the elaborate cytoskeletal machines harbored by eukaryotic cells, such as mitotic spindles, cytoskeletal structures detectable by typical negative stain electron microscopy are generally absent from bacterial cells. As a result, for decades it was thought that bacteria l...
Retinal image structure arises from the interaction between a surface's three-dimensional shape, its reflectance and transmittance properties, and the surrounding light field. Any local image structure can be generated by an infinite number of different combinations of surface properties, which ...
Radar studies of a honeybee’s flights when it first leaves its nest suggest the features of the surrounding landscape that it learns guide future foraging trips.
Q&A with Rob Dunn, evolutionary biologist, ecologist and writer.
The timing mechanism for mitotic progression is still poorly understood. The spindle assembly checkpoint (SAC), whose reversal upon chromosome alignment is thought to time anaphase [1–3], is functional during the rapid mitotic cycles of the Drosophila embryo; but its genetic inactivati...
Background Archaea comprise a significant fraction of Earth’s biodiversity, yet they remain much less well understood than Bacteria. Gene surveys, a few metagenomic studies and some single cell sequencing project have revealed numerous little studied archaeal phyla. Certain l...
Research on comparative cognition has largely focussed on successes and failures of animals to solve certain cognitive tasks, but in humans, memory errors can be more complex than simple failures to retrieve information [1, 2]. The existence of various types of “false memories“, where ...
Male mammals typically have shorter lifespans than females . Sex differences in survival may result, in part, from sex-specific optima in investment in reproduction, with higher male mortality rates from sexual competition selecting for a “live-fast die-young” strategy in this sex [...
Despite an increase in policy and management responses to the global biodiversity crisis, implementation of the 20 Aichi Biodiversity Targets still shows insufficient progress . These targets, strategic goals defined by the United Nations Convention on Biological Diversity (CBD), ad...
The existence of ‘false memories’, where individuals remember events that they have never actually experienced is well established in humans. Now a new study reports that insects similarly form illusory memories through merging of memory traces.
Classic life-history theory predicts that menopause should not occur because there should be no selection for survival after the cessation of reproduction . Yet, human females routinely live 30 years after they have stopped reproducing . Only two other species—killer whales (Orci...