Trypanosoma brucei, which causes sleeping sickness, evades the immune system by repeatedly altering the structure of its surface coat. Sequencing of its genome and studies of its 3D genome architecture have now revealed crucial molecular aspects of this strategy.
Gene AMY1, which kickstarts digestion of starch in the mouth, is associated with blood glucose levels and digestion of carbohydrates, with implications for understanding human evolutionary biology and the gut microbiome.
Unicellular diatoms are able to adapt their behavior to different external stimuli based on an evaluation of their own needs. In experiments, Seminavis robusta diatoms directed their orientation either towards nutrient sources or mating partners, depending on the degree of starvation and the need to mate.
An international team of earth scientists has linked the establishment of the Mekong River to a period of major intensification of the Asian monsoon during the middle Miocene, about 17 million years ago, findings that supplant the assumption that the river incised in response to tectonic causes.
A new statistical method that tests for equivalence, rather than difference, has a role to play in dismantling gender and publication biases in science. The authors believe the technique has broad applicability across disciplines and can help remove publication bias against ''negative results,'' opening the door to a broader investigation of natural phenomena.