Biology

Your expectations shape and quicken your perceptions. A new model that explains how that happens also suggests it’s time to update theories about sensory perception and decision making.

New work raises the estimated diversity of viruses in the seas more than twelvefold and lays the groundwork for a better understanding of their impact on global nutrient cycles.

Promising efforts at disentangling the effects of genes and the environment on complicated traits may have been confounded by statistical problems.

The rainbow of pigments that animals use for blood illustrates a central truth of evolution.

In harsh ecosystems around the world, microbiologists are finding evidence that “microbial seed banks” protect biodiversity from changing conditions.

Researchers are beginning to understand the ways in which viruses strategically manipulate and cooperate with one another.

New studies revise ideas about the symbiosis that gave mitochondria to cells and about whether the last common ancestor of all eukaryotes was one cell or many.

Two new studies show that the brain’s navigation system changes how it represents physical space to reflect personal experience.

Neuroscience has found that gestures are not merely important as tools of expression but as guides of cognition and perception.