Cooperatively breeding birds are those which don’t reproduce and instead guard nests of other birds of their species from brood parasites (birds which lay eggs in others’ nest to get help in raising their young ones). Cooperatively breeding birds opt for this strategy because it increases the chances of survival of chicks of their own species, says a study. Globally, the distribution of cooperatively breeding birds and brood parasites is correlated and isÃ”Ã‡Ãªconcentrated in Australasia and sub-Saharan Africa. The study isÃ”Ã‡Ãªlikely to help understand this uneven global distribution.
Science, December 22
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