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Latest Rebecca Kilner Stories

Birds Evolved Distinctive Patterns To Identify Cuckoo Eggs From Their Own
2014-06-19 03:13:09

University of Cambridge 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 offspring in other birds' nests - have evolved distinctive patterns on their eggs in order to distinguish them from those laid by a cuckoo cheat. The study reveals that these signature patterns provide a powerful defense against cuckoo trickery, helping host birds to...

2009-08-05 09:55:04

Faculty of 1000, the leading scientific evaluation service, has highlighted research providing evidence for the evolution of a new species.Birds use plumage colour to recognize and select potential mates. A mutation of a single DNA base can lead to a striking colour change, as demonstrated by two closely related flycatcher populations in the Solomon Islands. According to a report in the American Naturalist -- selected and reviewed by Faculty of 1000 member Rebecca Kilner (University of...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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