Kamikaze bacteria illustrate evolution of cooperation

sea-maid submitted, created time 2 months 3 weeks (www.nature.com)

Bacteria can commit suicide to help their brethren establish more damaging infections — and scientists think that they can explain how this behaviour evolved.

The phenomenon, called self-destructive cooperation, can help bacteria such as Salmonella typhimurium and Clostridium difficile to establish a stronghold in the gut.

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Pseudomonas bacteria cooperation is supplied greater resource.

Psychologists and literary historians cooperate on conclusion: There's probably no such thing as repressed memories.

Hecate submitted, created time 1 year 9 months (www.nytimes.com)

Here is a good example of how history and medicine can cross over: It seems that there are no historical references to repressed memories before 1800, when novelists began using it as a plot device, not in fiction and not in nonfiction. Scientists and literary scholars collaborated on this project, which was written up in [i]Psychological Medicine[/i].

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