For some birds, recognising their own eggs can be a matter of life or death. In a new study, scientists have shown that many birds affected by the parasitic Common Cuckoo - which lays its lethal ...

Cuckoos infiltrate the nests of other birds with similar-looking eggs, but drongos have evolved a highly effective way to snuff out the imposters. Their ability to recognise the uniquely patterned ...

Cuckoos are notorious for laying their eggs in other birds' nests. But their hosts are fighting back against this parasitic behaviour by evolving tell-tale signatures on their eggs, helping the host ...

How do animals use their distinctive patterning to recognize each other? For some birds, recognizing one's own eggs can be a matter of life or death. In a new study, researchers from Harvard ...

Get unlimited access to ad-free articles and exclusive content. Our Amazing Planet Quail eggs are like fingerprints, a new study suggests. The creamy blue-and-brown speckled eggs, splashed like a ...

For some birds, recognizing their own eggs can be a matter of life or death. In a new study, scientists have shown that many birds affected by the parasitic Common Cuckoo -- which lays its lethal ...