Bio-nerds and babies

Sometimes I think I lead a normal life, with normal friends. Then I get this email from a professor and it reminds me that I am deep in Bio-nerd land.

[They] are getting close to the moment where they have quantifiable direct fitness -- an event greatly worthy of a collective celebration in our cooperative, group-living species.

The invitation (attached) may be pink, but even those of us with Y-chromosomes are included!

Yes, he was talking about a baby shower.