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BehaveAI: Seeing motion as color

February 20, 2026

BehaveAI: Seeing motion as color

Despite decades of advancement in video processing, efficient and accurate quantification of complex motion information remains a computational challenge. Jolyon Troscianko, Kevin Gaston and colleagues present BehaveAI, a biologically inspired video analysis tool that sees motion as color, and is able to track animals or objects, classify their behavior, and handle complex natural scenes.

Image credit: Jolyon Troscianko

PLOS Biologue

Community blog for PLOS Biology, PLOS Genetics and PLOS Computational Biology.

PLOS BIOLOGUE

02/20/2026

Short Reports

Spotting the odd egg out

In brood parasitism, prior work predicts a trade-off in the host's error rates from accepting foreign eggs and rejecting their own eggs. Tanmay Dixit, Claire Spottiswoode and co-workers combine comparative field experiments and simulations to reveal advantages when egg trait distributions are categorical, rather than continuous, with implications for other types of co-evolutionary arms races.

Image credit: Tanmay Dixit

Spotting the odd egg out

Recently Published Articles

Current Issue

Current Issue January 2026

02/19/2026

Research Article

When is CRISPR-Cas beneficial to a plasmid?

Plasmids use immune systems like CRISPR-Cas to compete with other plasmids, but it is unclear when these systems provide a selective advantage. David Sünderhauf, Stineke van Houte and co-authors show that CRISPR-Cas benefits resident plasmids but is constrained by toxin-antitoxin systems after horizontal transfer.

Image credit: pbio.3003658

When is CRISPR-Cas beneficial to a plasmid?

02/19/2026

Research Article

Coloring Nemo

The social environment can influence organismal phenotypes in myriad ways, but the mechanisms and functions of such plasticity are incompletely understood. This study in an anemonefish, by Laurie Mitchell, Vincent Laudet and colleagues, shows that the timing of a color pattern transition responds to social conditions, and characterizes the mechanisms, evolutionary patterns and behavioral impact on social conflict.

Image credit: Camille Sautereau

Coloring Nemo

02/18/2026

Methods and Resources

Gene annotation across the Drosophilidae

Ongoing community efforts aim to achieve a comprehensive genomic study of the entire family Drosophilidae. Pankaj Dhakad, Darren Obbard and co-workers present a comparative gene annotation for 301 species of Drosophilidae and find that codon usage correlates with overall GC content and evolves slowly, but is also strongly shaped by selection.

Gene annotation across the Drosophilidae

Image credit: Darren Obbard

02/18/2026

Short Reports

Cone photoreceptor morphology

Photoreceptor cells exhibit variability in the morphology of the light-absorbing outer segment, the basis of which is unclear. This study in zebrafish, by Jingjin Xu, Chengtian Zhao and co-authors, reveals that the wavelength sensitivity of the expressed opsin and the intensity of light exposure determine outer segment morphology, with implications for our understanding of neuronal plasticity.

Cone photoreceptor morphology

Image credit: Jingjin Xu

02/17/2026

Methods and Resources

Better RNA structure prediction with DRfold2

Accurate RNA structure prediction remains challenging despite recent progress in computational approaches. Yang Li, Yang Zhang and colleagues develop a deep learning framework called DRFold2 that significantly enhances the accuracy of de novo RNA structure prediction by increasing contact prediction precision compared to existing methods.

Better RNA structure prediction with DRfold2

Image credit: pbio.3003659

02/13/2026

Perspective

Vaccines to fight neurodegenerative disease?

Current therapies for neurodegenerative diseases largely manage symptoms. This Perspective highlights emerging evidence that vaccines and antivirals may lower dementia risk by targeting viral triggers.

Vaccines to fight neurodegenerative disease?

Image credit: pbio.3003669

02/11/2026

Perspective

Is scientific reform an unwinnable arms race?

Methodological improvements should, in theory, mean more robust evidence and inference. However, these methods are often subsequently used in the pursuit of publication for its own sake. Can we break this cycle?

Is scientific reform an unwinnable arms race?

Image credit: unknown via Wikimedia Commons

02/02/2026

Essay

Sex differences in immunity

The human sexes differ in autoimmunity, infections, cancer and responses to immunotherapy and vaccines. This Essay explores the major areas where further research is required to determine sex-differential mechanisms in immunity.

Sex differences in immunity

Image credit: pbio.3003578

01/27/2026

Editorial

The many facets of immunometabolism

Immunometabolism is more than just metabolic shifts in immune cells. This Editorial highlights a new collection of articles exploring effects of molecular, cellular and systemic metabolic mechanisms in health and disease.

The many facets of immunometabolism

Image credit: Shogo Suga & Koki Nakamura

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