04-05-2012, 03:23 AM
Sheer practicality.
Being pregnant while shipwrecked greatly decreases probability of survival.
P.S.
Alvin and the Chipmunks: Chipwrecked
http://www.imdb.com/title/tt1615918/
Jean-Luc Godard: Film Socialisme (cruise ship sequence)
http://en.wikipedia.org/wiki/Film_Socialisme
a brightly colored fungus that grows in bark inclusions

