Polygamy hurt 19th century Mormon wives' evolutionary fitness

Polygamy practiced by some 19th century Mormon men had the curious effect of suppressing the overall offspring numbers of Mormon women in plural marriages, say scientists from Indiana University Bloomington and three other ...

Ant executions serve a higher purpose, research shows

Natural selection can be an agonizingly long process. Some organisms have a way of taking matters into their own hands, or—in the case of the ant species Cerapachys biroi—mandibles.

Plant study hints evolution may be predictable

Evolution has long been viewed as a rather random process, with the traits of species shaped by chance mutations and environmental events—and therefore largely unpredictable.

Pollinators can drive evolution of flower traits: study

(PhysOrg.com) -- Pretty flowers aren't produced so we can show them off in vases -- they serve the purpose of attracting such pollinators as bees, butterflies and hummingbirds, which enable them to produce seeds for the next ...

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