Evolving Security

Image taken from the LA Times Article

According to an article in the LA Times today, Australian scientists have made a fascinating finding, that the Superb Fairy-Wren has evolved a security counter-measure to foil brood parasites: while still inside the eggs, they learn from their mother a secret catch-phrase (unique to each nest!) that they can use to request food. The mother only feeds in response to this particular vocalization.

The original article appears in Current Biology.