Stories tagged finches

Interesting...

"Female Gouldian finches 'decide' to have more male chicks if they are less compatible with their mate.

The birds, which have either red or black heads, prefer to mate with males with the same head colouring, as this signifies a better genetic match.

Chicks from a mismatched mating - particularly the females - are weaker and more likely to die very early.

A report in the journal Science says that the birds compensate for this by having more male chicks in their brood.

Join the ongoing discussion about whether or not humans should use technology to select the sex of offspring when a genetic roll of the dice is a risky proposition.