Green eggs and scam: Cuckoo finch's long con may be up

For two million years African cuckoo finches have been tricking other birds into raising their young by mimicking the colour of their eggs, but new research suggests the tables may be turning in this evolutionary scam.

Parasite arms race spurs color change in bird eggs

The eggs laid by two African bird species have evolved different color patterns over a period of just 40 years, according to new research published in The American Naturalist. The quick change appears to be driven by an unwanted ...