Robert Katzman, a University of California, San Diego neuroscientist, died last Tuesday at the age of 82. Katzman showed that Alzheimer's disease was the fourth leading cause of death and that senile dementia was not a part of normal aging. Katzman also co-founded the Alzheimer's Association and helped create the Alzheimer's Disease Research Center at UCSD.

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Two researchers have found that behavioral genetic defenses in criminal cases don't tend to affect outcomes, according to Popular Science.

Researchers report that while host genetics influence the oral microbiome, they don't appear to affect cavity-causing microbes, the Economist says.

Pandas' gut microbiomes change as what they eat changes with the seasons, writes Discover's Inkfish blog.

In PLOS this week: comparative genomic study of malaria-linked macaque parasite, search for apple root reference genes, and more.