Brussels has said that any trade in non-compliant eggs "should be avoided" but any further measures to ensure compliance needed more consideration.

BBC: MPs urge export ban on eggs laid by battery caged hens

My attention was drawn to this market by a review at the Feminist Law Professors Blog on the newest book in the gamete-trade, Sex Cells: The Medical Market for Eggs and Sperm.

FORBES: Sperm Donors are from Mars, Ova-Sellers from Venus

He also has something to trade, which should allow him to be choosy about which females he allows to lay their eggs in his nest.

ECONOMIST: Birds do it, bees do it | The