Quail eggs are like fingerprints, a new study suggests. The creamy blue-and-brown speckled eggs, splashed like a toddler's art project, vary among birds but are consistently patterned for individuals.

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 ...

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 ...