{"id":3764,"date":"2024-07-24T21:31:31","date_gmt":"2024-07-24T21:31:31","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=3764"},"modified":"2024-07-24T21:31:31","modified_gmt":"2024-07-24T21:31:31","slug":"lyrarapax-unguispinus-fanged-killer-babies-cambrian-explosion","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/paleontology\/lyrarapax-unguispinus-fanged-killer-babies-cambrian-explosion\/","title":{"rendered":"Lyrarapax Unguispinus: Nh\u1eefng s\u00e1t th\u1ee7 nh\u00ed c\u00f3 nanh c\u1ee7a k\u1ef7 Cambri"},"content":{"rendered":"

Lyrarapax unguispinus: Nh\u1eefng s\u00e1t th\u1ee7 nh\u00ed c\u00f3 nanh c\u1ee7a k\u1ef7 Cambri<\/h2>\n\n

H\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 nh\u1ecf tu\u1ed5i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, h\u00e9 l\u1ed9 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m s\u0103n m\u1ed3i ti\u1ebfn b\u1ed9<\/h2>\n\n

C\u00e1ch \u0111\u00e2y kho\u1ea3ng 500 tri\u1ec7u n\u0103m, trong l\u00f2ng c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng c\u1ed5 \u0111\u1ea1i c\u1ee7a Tr\u00e1i \u0111\u1ea5t, m\u1ed9t lo\u00e0i ch\u00e2n kh\u1edbp \u0111\u00e1ng s\u1ee3 c\u00f3 t\u00ean Lyrarapax unguispinus \u1ea9n n\u00fap, s\u0103n \u0111u\u1ed5i nh\u1eefng sinh v\u1eadt kh\u00f4ng m\u1ea3y may nghi ng\u1edd. V\u1edbi k\u00edch th\u01b0\u1edbc kh\u1ed5ng l\u1ed3 d\u00e0i h\u01a1n ba feet v\u00e0 ph\u1ea7n ph\u1ee5 d\u1ea1ng c\u00e0ng \u0111\u00e1ng s\u1ee3, L. Unguispinus l\u00e0 m\u1ed9t k\u1ebb s\u0103n m\u1ed3i hung d\u1eef.<\/p>\n\n

Tuy nhi\u00ean, nh\u1eefng kh\u00e1m ph\u00e1 g\u1ea7n \u0111\u00e2y \u0111\u00e3 ch\u1ec9 ra r\u1eb1ng ngay c\u1ea3 nh\u1eefng c\u00e1 th\u1ec3 Lyrarapax unguispinus nh\u1ecf tu\u1ed5i c\u0169ng l\u00e0 nh\u1eefng k\u1ebb gi\u1ebft ng\u01b0\u1eddi c\u00f3 n\u0103ng l\u1ef1c. M\u1ed9t h\u00f3a th\u1ea1ch \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n t\u1ed1t c\u1ee7a m\u1ed9t c\u00e1 th\u1ec3 L. Unguispinus nh\u1ecf tu\u1ed5i, \u0111\u01b0\u1ee3c t\u00ecm th\u1ea5y \u1edf t\u1ec9nh V\u00e2n Nam, Trung Qu\u1ed1c, \u0111\u00e3 cung c\u1ea5p th\u00f4ng tin r\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 kh\u1ea3 n\u0103ng s\u0103n m\u1ed3i c\u1ee7a nh\u1eefng sinh v\u1eadt c\u1ed5 \u0111\u1ea1i n\u00e0y.<\/p>\n\n

M\u1eb7c d\u00f9 c\u00f3 k\u00edch th\u01b0\u1edbc nh\u1ecf, nh\u01b0ng h\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 nh\u1ecf tu\u1ed5i n\u00e0y l\u1ea1i c\u00f3 nh\u1eefng \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u00e1ng kinh ng\u1ea1c v\u1edbi nh\u1eefng con tr\u01b0\u1edfng th\u00e0nh. N\u00f3 s\u1edf h\u1eefu m\u1ed9t ph\u1ea7n ph\u1ee5 c\u00f3 gai \u0111\u1ec3 v\u1ed3 l\u1ea5y con m\u1ed3i v\u00e0 m\u1ed9t c\u00e1i mi\u1ec7ng tr\u00f2n v\u1edbi nh\u1eefng chi\u1ebfc r\u0103ng s\u1eafc, c\u00f3 kh\u00eda. Nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m n\u00e0y cho th\u1ea5y r\u1eb1ng ngay t\u1eeb khi c\u00f2n nh\u1ecf, L. Unguispinus nh\u1ecf tu\u1ed5i \u0111\u00e3 \u0111\u01b0\u1ee3c trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 \u0111\u1ec3 s\u0103n b\u1eaft v\u00e0 \u0103n th\u1ecbt con m\u1ed3i.<\/p>\n\n

Vai tr\u00f2 trong k\u1ef7 Cambri<\/h2>\n\n

Vi\u1ec7c ph\u00e1t hi\u1ec7n ra h\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 L. Unguispinus nh\u1ecf tu\u1ed5i c\u00f3 \u00fd ngh\u0129a quan tr\u1ecdng \u0111\u1ed1i v\u1edbi s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 k\u1ef7 Cambri, m\u1ed9t giai \u0111o\u1ea1n b\u00f9ng n\u1ed5 phi th\u01b0\u1eddng v\u1ec1 s\u1ef1 \u0111a d\u1ea1ng v\u00e0 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00e1c lo\u00e0i di\u1ec5n ra v\u00e0o kho\u1ea3ng 542 tri\u1ec7u n\u0103m tr\u01b0\u1edbc.<\/p>\n\n

Tr\u01b0\u1edbc k\u1ef7 Cambri, n\u1ed3ng \u0111\u1ed9 oxy trong c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng c\u1ee7a Tr\u00e1i \u0111\u1ea5t t\u01b0\u01a1ng \u0111\u1ed1i th\u1ea5p, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf s\u1ef1 s\u1ed1ng s\u00f3t c\u1ee7a c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt ph\u1ee9c t\u1ea1p. Tuy nhi\u00ean, s\u1ef1 gia t\u0103ng nh\u1eb9 v\u1ec1 n\u1ed3ng \u0111\u1ed9 oxy c\u00f3 th\u1ec3 \u0111\u00e3 cho ph\u00e9p nh\u1eefng k\u1ebb s\u0103n m\u1ed3i nh\u01b0 L. Unguispinus ph\u00e1t tri\u1ec3n m\u1ea1nh, ch\u00e2m ng\u00f2i cho m\u1ed9t “cu\u1ed9c ch\u1ea1y \u0111ua v\u0169 trang ti\u1ebfn h\u00f3a”.<\/p>\n\n

L\u00e0 nh\u1eefng k\u1ebb s\u0103n m\u1ed3i \u0111\u1ea7u b\u1ea3ng, nh\u1eefng c\u00e1 th\u1ec3 L. Unguispinus tr\u01b0\u1edfng th\u00e0nh \u0111\u00e3 t\u1ea1o ra \u00e1p l\u1ef1c \u0111\u00e1ng k\u1ec3 l\u00ean c\u00e1c sinh v\u1eadt kh\u00e1c, th\u00fac \u0111\u1ea9y s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m ph\u00f2ng th\u1ee7 nh\u01b0 b\u1ed9 x\u01b0\u01a1ng ngo\u00e0i v\u00e0 l\u1edbp v\u1ecf b\u1ea3o v\u1ec7. Vi\u1ec7c ph\u00e1t hi\u1ec7n ra h\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 nh\u1ecf tu\u1ed5i cho th\u1ea5y r\u1eb1ng ngay c\u1ea3 nh\u1eefng c\u00e1 th\u1ec3 L. Unguispinus nh\u1ecf tu\u1ed5i c\u0169ng \u0111\u00e3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong cu\u1ed9c ch\u1ea1y \u0111ua v\u0169 trang ti\u1ebfn h\u00f3a n\u00e0y, t\u1ea1o th\u00eam \u00e1p l\u1ef1c ch\u1ecdn l\u1ecdc \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i con m\u1ed3i nh\u1ecf h\u01a1n \u0111\u1ec3 ch\u00fang ph\u00e1t tri\u1ec3n c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m th\u00edch nghi \u0111\u1ec3 sinh t\u1ed3n.<\/p>\n\n

\u00dd ngh\u0129a \u0111\u1ed1i v\u1edbi c\u00e1c lo\u00e0i s\u0103n m\u1ed3i hi\u1ec7n \u0111\u1ea1i<\/h2>\n\n

H\u00e0nh vi s\u0103n m\u1ed3i c\u1ee7a nh\u1eefng c\u00e1 th\u1ec3 Lyrarapax unguispinus nh\u1ecf tu\u1ed5i cho th\u1ea5y nh\u1eefng \u0111i\u1ec3m t\u01b0\u01a1ng \u0111\u1ed3ng \u0111\u00e1ng kinh ng\u1ea1c v\u1edbi c\u00e1c lo\u00e0i ch\u00e2n kh\u1edbp hi\u1ec7n \u0111\u1ea1i nh\u01b0 b\u1ecd ng\u1ef1a v\u00e0 lo\u00e0i h\u00ecnh nh\u1ec7n, v\u1ed1n c\u0169ng l\u00e0 nh\u1eefng k\u1ebb s\u0103n m\u1ed3i \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n t\u1ed1t ngay t\u1eeb khi c\u00f2n nh\u1ecf. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y r\u1eb1ng m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m s\u0103n m\u1ed3i nh\u1ea5t \u0111\u1ecbnh c\u00f3 th\u1ec3 \u0111\u00e3 ti\u1ebfn h\u00f3a t\u1eeb r\u1ea5t s\u1edbm trong l\u1ecbch s\u1eed c\u1ee7a lo\u00e0i ch\u00e2n kh\u1edbp v\u00e0 \u0111\u01b0\u1ee3c duy tr\u00ec trong su\u1ed1t qu\u00e1 tr\u00ecnh ti\u1ebfn h\u00f3a c\u1ee7a ch\u00fang.<\/p>\n\n

K\u1ebft lu\u1eadn<\/h2>\n\n

Vi\u1ec7c ph\u00e1t hi\u1ec7n ra h\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 Lyrarapax unguispinus nh\u1ecf tu\u1ed5i \u0111\u00e3 cung c\u1ea5p nh\u1eefng th\u00f4ng tin r\u1ea5t c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 kh\u1ea3 n\u0103ng s\u0103n m\u1ed3i c\u1ee7a nh\u1eefng sinh v\u1eadt c\u1ed5 \u0111\u1ea1i n\u00e0y v\u00e0 vai tr\u00f2 c\u1ee7a ch\u00fang trong k\u1ef7 Cambri. N\u00f3 nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a nh\u1eefng k\u1ebb s\u0103n m\u1ed3i nh\u1ecf tu\u1ed5i trong vi\u1ec7c \u0111\u1ecbnh h\u00ecnh s\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a c\u00e1c h\u1ec7 sinh th\u00e1i v\u00e0 n\u00eau b\u1eadt nh\u1eefng \u0111\u1eb7c \u0111i\u1ec3m th\u00edch nghi \u0111\u00e1ng ch\u00fa \u00fd \u0111\u00e3 ti\u1ebfn h\u00f3a qua h\u00e0ng tri\u1ec7u n\u0103m \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o s\u1ef1 s\u1ed1ng c\u00f2n trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng c\u1ea1nh tranh v\u00e0 kh\u00f4ng ng\u1eebng thay \u0111\u1ed5i.<\/p>","protected":false},"excerpt":{"rendered":"

Lyrarapax unguispinus: Nh\u1eefng s\u00e1t th\u1ee7 nh\u00ed c\u00f3 nanh c\u1ee7a k\u1ef7 Cambri H\u00f3a th\u1ea1ch c\u1ee7a c\u00e1 th\u1ec3 nh\u1ecf tu\u1ed5i \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n, h\u00e9 l\u1ed9 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m s\u0103n m\u1ed3i ti\u1ebfn b\u1ed9…<\/p>\n","protected":false},"author":6,"featured_media":23931,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[138],"tags":[137,7051,7050,7048,7049],"class_list":["post-3764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paleontology","tag-paleontology","tag-evolutionary-arms-race","tag-juvenile-predators","tag-lyrarapax-unguispinus","tag-cambrian-explosion"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3764","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=3764"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3764\/revisions"}],"predecessor-version":[{"id":3765,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/3764\/revisions\/3765"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/23931"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=3764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=3764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=3764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}