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AnimalsMafia Cowbirds: Do they muscle birds that don’t play ball?
A new test offers the best evidence yet that cowbirds retaliate against birds that resist their egg scams.
By Susan Milius -
19805
A better title for this article might be “Mendelian Cowbirds.” By reducing the number of successful hatches and subsequent offspring of any parent birds that kick the interlopers’ eggs out of their nests, the cowbirds are (unintentionally) reducing the expression of that behavior in the next generation of potential foster families. W. Gregory StewartLos Angeles, […]
By Science News -
Living Long on Less? Mouse and human cells respond to slim diets
Some animals live longer on reduced-calorie diets, and in a recent experiment people on such diets had many of the cellular changes that those long-lived animals did.