Researchers at Drexel University studied how the relationship between pea aphids and their endosymbiont bacteria has evolved to help the aphids fend off parasitic Aphidius ervi. Disclaimer ...

My colleagues and I (Tenhumberg et al. 2009) used a matrix population model of pea aphids to compare predicted trajectories of populations that started out with 100% adults (adults are the ...

Bacteria-infecting viruses, generally thought to be harmful to their hosts, can also be surprisingly beneficial. A pea aphid Image: WikipediaA bacteriophage infecting a bacterium living in the cells ...