Ng\u01b0\u1eddi ti\u1ec1n s\u1eed s\u1edf h\u1eefu g\u1edd tr\u00ean cung m\u00e0y n\u1ed5i b\u1eadt, m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m ri\u00eang bi\u1ec7t khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc b\u1ed1i r\u1ed1i trong nhi\u1ec1u th\u1eadp k\u1ef7. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 \u0111\u01b0a ra nhi\u1ec1u gi\u1ea3 thuy\u1ebft kh\u00e1c nhau \u0111\u1ec3 gi\u1ea3i th\u00edch m\u1ee5c \u0111\u00edch c\u1ee7a ch\u00fang, bao g\u1ed3m b\u1ea3o v\u1ec7 kh\u1ecfi ch\u1ea5n th\u01b0\u01a1ng \u0111\u1ea7u, che m\u1eaft v\u00e0 ng\u0103n c\u1ea3n t\u00f3c che ph\u1ee7. Tuy nhi\u00ean, c\u00e1c nghi\u00ean c\u1ee9u g\u1ea7n \u0111\u00e2y \u0111\u00e3 th\u00e1ch th\u1ee9c nh\u1eefng gi\u1ea3i th\u00edch truy\u1ec1n th\u1ed1ng n\u00e0y.<\/p>\n\n
M\u1ed9t nh\u00f3m c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u1ea1i \u0110\u1ea1i h\u1ecdc York \u1edf Anh \u0111\u00e3 kh\u00e1m ph\u00e1 gi\u1ea3 thuy\u1ebft v\u1ec1 ch\u1ee9c n\u0103ng x\u00e3 h\u1ed9i, cho r\u1eb1ng c\u00e1c g\u1edd tr\u00ean cung m\u00e0y qu\u00e1 kh\u1ed5 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t d\u1ea5u hi\u1ec7u c\u1ee7a s\u1ef1 th\u1ed1ng tr\u1ecb. H\u1ecd \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng nh\u1eefng g\u1edd n\u00e0y nh\u00f4 ra \u0111\u1ec3 t\u1ea1o n\u00ean v\u1ebb ngo\u00e0i uy nghi\u00eam h\u01a1n, ng\u0103n ch\u1eb7n c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m t\u00e0ng v\u00e0 th\u1ec3 hi\u1ec7n \u0111\u1ecba v\u1ecb trong c\u00e1c nh\u00f3m x\u00e3 h\u1ed9i.<\/p>\n\n
\u0110\u1ec3 ki\u1ec3m tra gi\u1ea3 thuy\u1ebft n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 t\u1ea1o ra m\u1ed9t m\u00f4 h\u00ecnh 3D c\u1ee7a h\u1ed9p s\u1ecd ng\u01b0\u1eddi ti\u1ec1n s\u1eed v\u00e0 th\u1eed nghi\u1ec7m v\u1edbi k\u00edch th\u01b0\u1edbc c\u1ee7a g\u1edd tr\u00ean cung m\u00e0y. H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng vi\u1ec7c gi\u1ea3m k\u00edch th\u01b0\u1edbc c\u1ee7a g\u1edd kh\u00f4ng l\u00e0m gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u1ee9ng su\u1ea5t c\u01a1 h\u1ecdc l\u00ean h\u1ed9p s\u1ecd trong khi c\u1eafn. Ngo\u00e0i ra, g\u1edd n\u00e0y l\u1edbn h\u01a1n m\u1ee9c c\u1ea7n thi\u1ebft \u0111\u1ec3 l\u1ea5p \u0111\u1ea7y kho\u1ea3ng tr\u1ed1ng gi\u1eefa tr\u00e1n v\u00e0 h\u1ed1c m\u1eaft.<\/p>\n\n
Nh\u00e0 nh\u00e2n ch\u1ee7ng h\u1ecdc Grover Krantz \u0111\u00e3 ti\u1ebfn h\u00e0nh m\u1ed9t th\u00ed nghi\u1ec7m b\u1eb1ng c\u00e1ch \u0111eo b\u1ea3n sao g\u1edd tr\u00ean cung m\u00e0y c\u1ee7a ng\u01b0\u1eddi Homo erectus \u1edf nh\u1eefng n\u01a1i c\u00f4ng c\u1ed9ng. \u00d4ng quan s\u00e1t th\u1ea5y r\u1eb1ng m\u1ecdi ng\u01b0\u1eddi c\u00f3 xu h\u01b0\u1edbng tr\u00e1nh \u00f4ng, \u0111i\u1ec1u n\u00e0y cho th\u1ea5y g\u1edd tr\u00ean cung m\u00e0y c\u00f3 th\u1ec3 g\u1ee3i l\u00ean c\u1ea3m gi\u00e1c \u0111e d\u1ecda. Quan s\u00e1t n\u00e0y c\u00e0ng c\u1ee7ng c\u1ed1 th\u00eam cho gi\u1ea3 thuy\u1ebft v\u1ec1 ch\u1ee9c n\u0103ng x\u00e3 h\u1ed9i.<\/p>\n\n
Theo th\u1eddi gian, khu\u00f4n m\u1eb7t c\u1ee7a con ng\u01b0\u1eddi b\u1eaft \u0111\u1ea7u thu nh\u1ecf, c\u00f3 th\u1ec3 l\u00e0 do s\u1ef1 ti\u1ebfn b\u1ed9 trong ph\u01b0\u01a1ng ph\u00e1p n\u1ea5u n\u01b0\u1edbng ho\u1eb7c s\u1ef1 thay \u0111\u1ed5i trong m\u1ee9c \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng. Khi khu\u00f4n m\u1eb7t tr\u1edf n\u00ean nh\u1ecf h\u01a1n, t\u1ed5 ti\u00ean c\u1ee7a ch\u00fang ta tr\u1edf n\u00ean h\u00f2a \u0111\u1ed3ng h\u01a1n, v\u1edbi s\u1ef1 ti\u1ebfp x\u00fac v\u00e0 h\u1ee3p t\u00e1c nhi\u1ec1u h\u01a1n gi\u1eefa c\u00e1c nh\u00f3m. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u tin r\u1eb1ng s\u1ef1 m\u1ea5t \u0111i c\u1ee7a g\u1edd tr\u00ean cung m\u00e0y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho nh\u1eefng bi\u1ec3u \u0111\u1ea1t c\u1ea3m x\u00fac tinh t\u1ebf h\u01a1n, t\u0103ng c\u01b0\u1eddng giao ti\u1ebfp v\u00e0 h\u1ee3p t\u00e1c.<\/p>\n\n
Con ng\u01b0\u1eddi hi\u1ec7n \u0111\u1ea1i s\u1edf h\u1eefu l\u00f4ng m\u00e0y di \u0111\u1ed9ng, r\u1ea5t bi\u1ec3u c\u1ea3m v\u00e0 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c truy\u1ec1n t\u1ea3i nh\u1eefng c\u1ea3m x\u00fac tinh t\u1ebf. Kh\u00f4ng b\u1ecb r\u00e0ng bu\u1ed9c b\u1edfi m\u1ed9t g\u1edd tr\u00ean cung m\u00e0y r\u00f5 r\u1ec7t, l\u00f4ng m\u00e0y c\u1ee7a ch\u00fang ta c\u00f3 th\u1ec3 truy\u1ec1n t\u1ea3i nhi\u1ec1u cung b\u1eadc c\u1ea3m x\u00fac kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 ng\u1ea1c nhi\u00ean, ho\u00e0i nghi v\u00e0 b\u1ed1i r\u1ed1i.<\/p>\n\n
Trong khi gi\u1ea3 thuy\u1ebft v\u1ec1 ch\u1ee9c n\u0103ng x\u00e3 h\u1ed9i \u0111ang \u0111\u01b0\u1ee3c ch\u00fa \u00fd, th\u00ec m\u1ed9t s\u1ed1 chuy\u00ean gia v\u1eabn c\u00f2n ho\u00e0i nghi. Nh\u00e0 c\u1ed5 nh\u00e2n ch\u1ee7ng h\u1ecdc Ashley Hammond cho r\u1eb1ng x\u01b0\u01a1ng g\u1edd tr\u00ean cung m\u00e0y d\u00e0y c\u1ee7a ng\u01b0\u1eddi Homo heidelbergensis c\u00f3 th\u1ec3 l\u00e0 do m\u1ee9c testosterone cao h\u01a1n. Tuy nhi\u00ean, nghi\u00ean c\u1ee9u m\u1edbi n\u00e0y b\u1ed5 sung th\u00eam v\u00e0o m\u1ed9t kh\u1ed1i l\u01b0\u1ee3ng l\u1edbn b\u1eb1ng ch\u1ee9ng cho th\u1ea5y giao ti\u1ebfp v\u00e0 h\u1ee3p t\u00e1c l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 t\u1ed3n t\u1ea1i c\u1ee7a lo\u00e0i ch\u00fang ta.<\/p>\n\n
Nghi\u00ean c\u1ee9u v\u1ec1 g\u1edd tr\u00ean cung m\u00e0y cung c\u1ea5p th\u00f4ng tin chi ti\u1ebft v\u1ec1 s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a giao ti\u1ebfp v\u00e0 h\u00e0nh vi x\u00e3 h\u1ed9i \u1edf con ng\u01b0\u1eddi. N\u00f3 l\u00e0m n\u1ed5i b\u1eadt s\u1ef1 t\u01b0\u01a1ng t\u00e1c gi\u1eefa gi\u1ea3i ph\u1eabu h\u1ecdc v\u00e0 \u0111\u1ed9ng l\u1ef1c x\u00e3 h\u1ed9i, cho th\u1ea5y r\u1eb1ng l\u00f4ng m\u00e0y bi\u1ec3u c\u1ea3m c\u1ee7a ch\u00fang ta c\u00f3 th\u1ec3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a con ng\u01b0\u1eddi hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"excerpt":{"rendered":"
L\u00f4ng m\u00e0y bi\u1ec3u c\u1ea3m: M\u1ed9t l\u1ee3i th\u1ebf ti\u1ebfn h\u00f3a cho con ng\u01b0\u1eddi hi\u1ec7n \u0111\u1ea1i S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a g\u1edd tr\u00ean cung m\u00e0y Ng\u01b0\u1eddi ti\u1ec1n s\u1eed s\u1edf h\u1eefu g\u1edd tr\u00ean cung…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19000],"tags":[18052,7210,18998,18999,136],"class_list":["post-14124","post","type-post","status-publish","format-standard","hentry","category-human-evolution","tag-human-anatomy","tag-cooperation","tag-eyebrows","tag-social-communication","tag-evolution"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/14124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=14124"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/14124\/revisions"}],"predecessor-version":[{"id":14125,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/14124\/revisions\/14125"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=14124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=14124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=14124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}