Best Of MetaFilter

DNA by Caroline Davis2010 (cc by)

there's virtually no predictive power to say "I inherited [x] from my (grand)parent so I probably inherited [y] as well: metaBugs helps us out at the deep end of the gene pool in Ask Metafilter.

ποντίκι / μυς, mouse (Mus musculus) by George Shuklin by dullhunk (cc by)

... this is cool, important, and well done research. But as in most cases, we should be cautious in making assumptions about how broadly it applies

biogeo offers an outstanding, detailed backgrounder in the Turning off intergenerational trauma in mice thread.