This volume is based on the National Academy of Sciences' Colloquium on the Tempo and Mode of Evolution. The articles appearing in these pages were contributed by speakers at the colloquium and have ...

If you want to go on a trip down memory lane, there are a few things you can do. I've just recently unearthed some old videotapes from around 1997, and that hit hard. But playing a game I used to play ...

a See refs. (McHenry, 1992 and 1994). b Endocranial volume is transformed into brain volume by formula 4 in ref (Aiello and Dunbar, 1993). c EQ is the ratio of brain volume and expected volume.