{"id":15228,"date":"2018-04-10T08:25:50","date_gmt":"2018-04-10T13:25:50","guid":{"rendered":"http:\/\/huewhite.com\/umb\/?p=15228"},"modified":"2018-04-10T08:25:50","modified_gmt":"2018-04-10T13:25:50","slug":"spf","status":"publish","type":"post","link":"https:\/\/huewhite.com\/umb\/2018\/04\/10\/spf\/","title":{"rendered":"SPF-?"},"content":{"rendered":"

I was fascinated to see what is generally considered body paint in the archaeological record may have been far more functional, as noted<\/a> in Discover<\/strong><\/em> (April 2018):<\/p>\n

Riaan Rifkin, an archaeologist at the University of Pretoria in South Africa, has been one of the leading proponents of a new, functional interpretation of ochre in the story of human evolution. For nearly a decade, his experiments, along with those of colleagues, have pointed to prehistoric use of the material not just as a sunscreen and adhesive but also an insect repellent and leather preservative.<\/p>\n

Rifkin believes, in fact, that ochre\u2019s functional applications may have contributed directly to\u00a0H. sapiens<\/em>\u2019 greatest early achievement: spreading across the world. \u201cThe use of red ochre as a sunscreen must have enabled humans to traverse longer distances without getting excessively sunburnt. This was an amazing adaptive advantage. They could forage longer and explore further,\u201d says Rifkin. He suspects ochre sunscreen evolved about the same time humans began using ostrich eggshells as containers for water and other provisions, about 65,000 years ago. \u201cAs soon as we could carry water with us, had a good [ochre-based] sunscreen and mosquito repellent, and warm [ochre-tanned] clothing, we were able to expand from Africa.\u201d<\/p><\/blockquote>\n

It’s not a generally accepted theory just yet, but it’s most interesting, not only for what it says about ochre, but also what it says about scientists’ interpretations of evidence. It speaks to the quality of the evidence as much as the preconceptions of the interpreters.<\/p>\n

And it sort of thrills me, as well.<\/p>\n","protected":false},"excerpt":{"rendered":"

I was fascinated to see what is generally considered body paint in the archaeological record may have been far more functional, as noted in Discover (April 2018): Riaan Rifkin, an archaeologist at the University of Pretoria in South Africa, has been one of the leading proponents of a new, functional \u2026 Continue reading → <\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15228","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/15228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/comments?post=15228"}],"version-history":[{"count":2,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/15228\/revisions"}],"predecessor-version":[{"id":15239,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/posts\/15228\/revisions\/15239"}],"wp:attachment":[{"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/media?parent=15228"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/categories?post=15228"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huewhite.com\/umb\/wp-json\/wp\/v2\/tags?post=15228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}