Oldest evidence of human cannibalism as a funerary practice

The remains of human bones with cutmarks, breaks and human chewing marks found across northern Europe show that some human groups living around 15,000 years ago were eating their dead not out of necessity, but as part of ...

Stars and inner compass guide moths and birds, say researchers

Gray-brown bogong moths may not be much to look at, but every year they perform a nocturnal journey worthy of attention. Billions of them fly as many as 1,000 kilometers from plains in eastern Australia to mountain caves ...

Metaphors for human fertilization are evolving, study shows

In a common metaphor used to describe human fertilization, sperm cells are competitors racing to penetrate a passive egg. But as critics have noted, the description is also a "fairy tale," rooted in cultural beliefs about ...

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