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Chris Hadfield
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48,000-year-old bone arrowheads and jewelry discovered in Sri Lankan cave

Artifacts uncovered in southeast Asia offer clues on early complex human cultures.

Langley et al., 2020
  • Archaeologists discovered a trove of bone tools used roughly 48,000 years ago in a Sri Lankan cave.
  • Uncovered artifacts include the earliest known bow-and-arrow devices found out of Africa, weaving utensils, and decorative beads chiseled from the tips of marine snail shells.
  • The findings underline the necessity of looking for early Homo sapien innovation in regions outside of the grasslands and coasts of Africa or Europe, where much of the research has been focused.
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Neanderthal bones: Signs of their sex lives

Inbreeding leads to a problematically small gene pool.

PIERRE ANDRIEU/AFP via Getty Images
In a cave tucked into the limestone hills of the Asturias region of Spain, there lie the remains of a group of 13 Neanderthals that date to between 50,600 and 47,300 years ago.
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Algorithms associating appearance and criminality have a dark past

We'd like to think that judging people's worth based on the shape of their head is a practice that's behind us.

PATRICK KOVARIK/AFP via Getty Images

'Phrenology' has an old-fashioned ring to it. It sounds like it belongs in a history book, filed somewhere between bloodletting and velocipedes.

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Remains of first modern humans in Europe found

The discovery may change what we know about early humans in Europe.

NIKOLAY DOYCHINOV/AFP via Getty Images
  • Newly found human remains in Bulgaria have pushed back the date of Homo sapiens arriving in Europe by thousands of years.
  • The site was also littered with animal remains and stone tools.
  • These humans were not part of the tool-making culture that replaced the Neanderthals, leaving the fate of the discovered group a mystery.


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What did Ancient Romans do without toilet paper?

Many of the bathrooms uncovered at Pompeii and elsewhere were communal.

Photo by Inés Castellano on Unsplash

We've all been caught unawares by our digestive tract at one time or another.

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