Ch\u1ed7 m\u1ec1m tr\u00ean \u0111\u1ea7u em b\u00e9 l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m th\u00fa v\u1ecb \u0111\u00e3 l\u00e0m c\u00e1c nh\u00e0 khoa h\u1ecdc b\u0103n kho\u0103n h\u00e0ng th\u1ebf k\u1ef7. Mi\u1ebfng h\u1ed9p s\u1ecd m\u1ec1m, \u0111\u00e0n h\u1ed3i n\u00e0y l\u00e0 n\u01a1i x\u01b0\u01a1ng ch\u01b0a h\u00ecnh th\u00e0nh ho\u00e0n ch\u1ec9nh, ph\u1ea3n \u00e1nh h\u00e0nh tr\u00ecnh ph\u00e1t tri\u1ec3n \u0111\u1ed9c nh\u1ea5t c\u1ee7a tr\u1ebb s\u01a1 sinh lo\u00e0i ng\u01b0\u1eddi.<\/p>\n\n
M\u1ed9t nghi\u00ean c\u1ee9u g\u1ea7n \u0111\u00e2y \u0111\u00e3 h\u00e9 l\u1ed9 ngu\u1ed3n g\u1ed1c ti\u1ebfn h\u00f3a c\u1ee7a c\u00e1c ch\u1ed7 m\u1ec1m. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u ph\u00e1t hi\u1ec7n r\u1eb1ng tr\u1ebb h\u1eadu nh\u00e2n ng\u01b0\u1eddi, g\u1ed3m c\u1ea3 t\u1ed5 ti\u00ean ch\u00fang ta, \u0111\u00e3 c\u00f3 ch\u1ed7 m\u1ec1m \u00edt nh\u1ea5t ba tri\u1ec7u n\u0103m qua. Kh\u00e1m ph\u00e1 n\u00e0y g\u1ee3i \u00fd r\u1eb1ng ch\u1ed7 m\u1ec1m ti\u1ebfn h\u00f3a nh\u01b0 m\u1ed9t ph\u1ea3n \u1ee9ng v\u1edbi b\u1ed9 n\u00e3o \u0111\u1eb7c bi\u1ec7t v\u00e0 c\u00e1ch \u0111i b\u1ed9 kh\u00e1c th\u01b0\u1eddng c\u1ee7a ch\u00fang ta.<\/p>\n\n
Khi h\u1eadu nh\u00e2n ng\u01b0\u1eddi ti\u1ebfn h\u00f3a b\u1ed9 n\u00e3o l\u1edbn h\u01a1n, vi\u1ec7c sinh n\u1edf tr\u1edf n\u00ean kh\u00f3 kh\u0103n h\u01a1n cho m\u1eb9. Ch\u1ed7 m\u1ec1m v\u00e0 \u0111\u01b0\u1eddng kh\u1edbp metopic, v\u1ea1ch \u0111\u00e1nh d\u1ea5u n\u01a1i hai ph\u1ea7n x\u01b0\u01a1ng tr\u00e1n h\u1ee3p l\u1ea1i, \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c gi\u1ea3m nh\u1eb9 v\u1ea5n \u0111\u1ec1 n\u00e0y. Trong l\u00fac sinh, c\u00e1c c\u01a1n co th\u1eaft k\u00eanh \u0111\u1ebb khi\u1ebfn m\u00e9p h\u1ed9p s\u1ecd em b\u00e9 ch\u1ed3ng l\u00ean nhau, n\u00e9n \u0111\u1ea7u b\u00e9 l\u1ea1i \u0111\u1ec3 d\u1ec5 \u0111i qua k\u00eanh \u0111\u1ebb h\u1eb9p.<\/p>\n\n
M\u1ed9t y\u1ebfu t\u1ed1 kh\u00e1c th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh ch\u1ed7 m\u1ec1m l\u00e0 t\u1ed1c \u0111\u1ed9 t\u0103ng tr\u01b0\u1edfng n\u00e3o c\u1ef1c nhanh \u1edf tr\u1ebb s\u01a1 sinh trong n\u0103m \u0111\u1ea7u \u0111\u1eddi. S\u1ef1 ph\u00e1t tri\u1ec3n n\u00e0y v\u1eabn ti\u1ebfp di\u1ec5n sau khi sinh; c\u00f3 ch\u1ed7 m\u1ec1m v\u00e0 tr\u00e1n ch\u01b0a li\u1ec1n x\u01b0\u01a1ng gi\u00fap h\u1ed9p s\u1ecd gi\u00e3n n\u1edf theo b\u1ed9 n\u00e3o ng\u00e0y c\u00e0ng l\u1edbn.<\/p>\n\n
V\u1ecf n\u00e3o tr\u00e1n, n\u1eb1m sau tr\u00e1n, ch\u1ecbu tr\u00e1ch nhi\u1ec7m cho nhi\u1ec1u kh\u1ea3 n\u0103ng nh\u1eadn th\u1ee9c cao c\u1ea5p. \u1ede ng\u01b0\u1eddi, v\u00f9ng n\u00e0y \u0111\u00e3 tr\u1ea3i qua nh\u1eefng thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 h\u00ecnh d\u1ea1ng trong qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a. Nh\u1eefng thay \u0111\u1ed5i \u0111\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c tr\u00ec ho\u00e3n ho\u00e0n thi\u1ec7n ph\u1ea7n h\u1ed9p s\u1ecd n\u00e0y \u1edf tr\u1ebb nh\u1ecf, cho ph\u00e9p b\u1ed9 n\u00e3o ti\u1ebfp t\u1ee5c l\u1edbn v\u00e0 ph\u00e1t tri\u1ec3n nh\u1eadn th\u1ee9c.<\/p>\n\n
H\u00f3a th\u1ea1ch Taung Child, m\u1ed9t m\u1eabu Australopithecus africanus n\u1ed5i ti\u1ebfng, cho th\u1ea5y d\u1ea5u hi\u1ec7u c\u1ee7a ch\u1ed7 m\u1ec1m. C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u t\u00ecm th\u1ea5y \u0111\u01b0\u1eddng vi\u1ec1n ch\u1ed7 m\u1ec1m tr\u00ean h\u1ed9p s\u1ecd Taung Child, cho th\u1ea5y \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y \u0111\u00e3 c\u00f3 m\u1eb7t \u1edf h\u1eadu nh\u00e2n ng\u01b0\u1eddi s\u1edbm. B\u1eb1ng ch\u1ee9ng t\u01b0\u01a1ng t\u1ef1 c\u0169ng xu\u1ea5t hi\u1ec7n tr\u00ean h\u1ed9p s\u1ecd Homo habilis v\u00e0 Homo erectus.<\/p>\n\n
D\u00f9 vi\u1ec7c ph\u00e1t hi\u1ec7n ch\u1ed7 m\u1ec1m \u1edf h\u1eadu nh\u00e2n ng\u01b0\u1eddi s\u01a1 khai \u0111\u00e3 l\u00e0m s\u00e1ng t\u1ecf l\u1ecbch s\u1eed ti\u1ebfn h\u00f3a c\u1ee7a n\u00f3, v\u1eabn c\u00f2n nhi\u1ec1u \u0111i\u1ec1u ch\u01b0a \u0111\u01b0\u1ee3c bi\u1ebft. C\u00e1c nghi\u00ean c\u1ee9u t\u1edbi \u0111\u00e2y s\u1ebd t\u1eadp trung t\u00ecm ch\u1ed7 m\u1ec1m \u1edf c\u00e1c lo\u00e0i h\u1eadu nh\u00e2n ng\u01b0\u1eddi c\u00f2n c\u1ed5 \u0111\u1ea1i h\u01a1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh th\u1eddi \u0111i\u1ec3m \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y xu\u1ea5t hi\u1ec7n. Nh\u1eefng n\u1ed7 l\u1ef1c \u0111\u00f3 s\u1ebd gi\u00fap ch\u00fang ta hi\u1ec3u r\u00f5 h\u01a1n c\u00e1c y\u1ebfu t\u1ed1 \u0111\u1ecbnh h\u00ecnh ti\u1ebfn h\u00f3a lo\u00e0i ng\u01b0\u1eddi v\u00e0 nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m duy nh\u1ea5t khi\u1ebfn ta kh\u00e1c bi\u1ec7t v\u1edbi c\u00e1c lo\u00e0i linh tr\u01b0\u1edfng kh\u00e1c.<\/p>\n\n
Ng\u00e0y nay, ch\u1ed7 m\u1ec1m l\u00e0 m\u1ed9t ph\u1ea7n b\u00ecnh th\u01b0\u1eddng v\u00e0 thi\u1ebft y\u1ebfu trong s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a tr\u1ebb s\u01a1 sinh. Ch\u00fang th\u01b0\u1eddng li\u1ec1n l\u1ea1i trong hai n\u0103m \u0111\u1ea7u, nh\u01b0ng \u0111\u00f4i khi v\u1eabn c\u00f2n m\u1ed9t ph\u1ea7n \u1edf ng\u01b0\u1eddi tr\u01b0\u1edfng th\u00e0nh. D\u00f9 ch\u1ed7 m\u1ec1m kh\u00f4ng nh\u1ea5t thi\u1ebft b\u00e1o hi\u1ec7u b\u1ea5t k\u1ef3 t\u00ecnh tr\u1ea1ng y t\u1ebf n\u00e0o, b\u1ea1n v\u1eabn n\u00ean tham kh\u1ea3o \u00fd ki\u1ebfn chuy\u00ean gia y t\u1ebf n\u1ebfu c\u00f3 b\u1ea5t c\u1ee9 lo l\u1eafng n\u00e0o.<\/p>","protected":false},"excerpt":{"rendered":"
T\u1ea1i sao tr\u1ebb s\u01a1 sinh c\u00f3 ch\u1ed7 m\u1ec1m tr\u00ean \u0111\u1ea7u? \u0110i\u1ec3m m\u1ec1m b\u00ed \u1ea9n Ch\u1ed7 m\u1ec1m tr\u00ean \u0111\u1ea7u em b\u00e9 l\u00e0 m\u1ed9t \u0111\u1eb7c \u0111i\u1ec3m th\u00fa v\u1ecb \u0111\u00e3 l\u00e0m c\u00e1c nh\u00e0…<\/p>\n","protected":false},"author":2,"featured_media":25266,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[288],"tags":[6731,137,132,6732,6730,487],"class_list":["post-3546","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biology","tag-brain-development","tag-paleontology","tag-anthropology","tag-cognitive-development","tag-soft-spots","tag-human-evolution"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3546","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=3546"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3546\/revisions"}],"predecessor-version":[{"id":25267,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3546\/revisions\/25267"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/25266"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=3546"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=3546"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=3546"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}