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May 6, 2004 · Christopher Henshilwood, a professor at the Centre for Development Studies of the University of Bergen in Norway, and his team found the shells at Blombos Cave site, 300 km …

Sep 12, 2018 · Here we report a cross-hatched pattern drawn with an ochre crayon on a ground silcrete flake recovered from approximately 73,000-year-old Middle Stone Age levels at …

Sep 12, 2018 · Blombos Cave, on the country's southern coast about 190 miles from Cape Town, has already yielded a rich collection of Stone Age artifacts including pieces of ochre with …

Sep 12, 2018 · Anthropologists have been digging around in Blombos Cave since the early 1990s, uncovering bones, shell beads, pieces of ochre and other small stones engraved with …

Sep 12, 2018 · Around 73,000 years ago, in a cave now known as Blombos, someone took a pointed lump of iron-rich rock—ochre—and dragged its tip across another rock, leaving behind …

Bumblebees (of the genus Bombus) are common native bees and important pollinators in most areas of North America. In spring, queens emerge from underground where they have spent …

Bombus polaris, known as the arctic bumblebee, has a unique challenge when compared to the other bumble bees. It lives in a strikingly cold climate and requires a greater effort to regulate …

Metalasia muricata, commonly known as white bristle bush or blombos, is a hardy virgate or twiggy shrub with honey-scented flowers usually 2–4 m tall, woody with a rounded crown. It is …

There was a time when you could find this bumble bee across most of North America from Quebec to Florida, westward to South Dakota, then south into the central Mountains of …