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Robin on nest

Why do some songbirds warm eggs longer than others?

Birds with a short lifespan put more effort into incubating their young

The amount of care parents provide their young varies greatly across the animal kingdom, particularly among songbird species, who spend anywhere from 20 per cent to nearly 100 per cent of daylight hours warming eggs in their nests. A team of researchers led by Thomas Martin, senior scientist and professor at UM’s Montana Cooperative Wildlife