{"id":12419,"date":"2020-01-31T08:58:44","date_gmt":"2020-01-31T08:58:44","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=12419"},"modified":"2020-01-31T08:58:44","modified_gmt":"2020-01-31T08:58:44","slug":"zebra-stripes-camouflage-mystery","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/zoology\/zebra-stripes-camouflage-mystery\/","title":{"rendered":"S\u1ecdc ng\u1ef1a v\u1eb1n: M\u1ee5c \u0111\u00edch th\u1ef1c s\u1ef1 khi\u1ebfn b\u1ea1n kinh ng\u1ea1c!"},"content":{"rendered":"<h2 class=\"wp-block-heading\">V\u1eb1n ng\u1ef1a v\u1eb1n: Kh\u00f4ng ch\u1ec9 \u0111\u1ec3 ng\u1ee5y trang?<\/h2>\n\n<h2 class=\"wp-block-heading\">B\u00ed \u1ea9n v\u1ec1 nh\u1eefng s\u1ecdc v\u1eb1n<\/h2>\n\n<p>Trong nhi\u1ec1u th\u1ebf k\u1ef7, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 tranh lu\u1eadn v\u1ec1 m\u1ee5c \u0111\u00edch c\u1ee7a nh\u1eefng s\u1ecdc v\u1eb1n. M\u1ed9t s\u1ed1 ng\u01b0\u1eddi cho r\u1eb1ng ch\u00fang gi\u00fap ng\u1ee5y trang, trong khi nh\u1eefng ng\u01b0\u1eddi kh\u00e1c l\u1ea1i cho r\u1eb1ng ch\u00fang ph\u1ee5c v\u1ee5 ch\u1ee9c n\u0103ng x\u00e3 h\u1ed9i ho\u1eb7c \u0111i\u1ec1u h\u00f2a th\u00e2n nhi\u1ec7t.<\/p>\n\n<h2 class=\"wp-block-heading\">Ng\u1ee5y trang hay kh\u00f4ng?<\/h2>\n\n<p>Quan \u0111i\u1ec3m truy\u1ec1n th\u1ed1ng cho r\u1eb1ng s\u1ecdc ng\u1ef1a v\u1eb1n gi\u00fap c\u00e1c lo\u00e0i \u0111\u1ed9ng v\u1eadt \u1ea9n n\u00e1u kh\u1ecfi nh\u1eefng k\u1ebb s\u0103n m\u1ed3i. Tuy nhi\u00ean, m\u1ed9t nghi\u00ean c\u1ee9u g\u1ea7n \u0111\u00e2y \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed PLOS One \u0111\u00e3 th\u00e1ch th\u1ee9c l\u00fd thuy\u1ebft n\u00e0y.<\/p>\n\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng h\u00ecnh \u1ea3nh k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a ng\u1ef1a v\u1eb1n \u1edf Tanzania \u0111\u1ec3 m\u00f4 ph\u1ecfng h\u00ecnh \u1ea3nh nh\u1eefng con v\u1eadt n\u00e0y s\u1ebd xu\u1ea5t hi\u1ec7n nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ed1i v\u1edbi nh\u1eefng k\u1ebb s\u0103n m\u1ed3i kh\u00e1c nhau, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u01b0 t\u1eed, linh c\u1ea9u v\u00e0 nh\u1eefng con ng\u1ef1a v\u1eb1n kh\u00e1c. H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng, trong khi con ng\u01b0\u1eddi c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra ng\u1ef1a v\u1eb1n \u1edf kho\u1ea3ng c\u00e1ch l\u00ean \u0111\u1ebfn 50 m\u00e9t v\u00e0o ban ng\u00e0y v\u00e0 30 m\u00e9t v\u00e0o l\u00fac ch\u1ea1ng v\u1ea1ng, nh\u1eefng k\u1ebb s\u0103n m\u1ed3i kh\u00f4ng th\u1ec3 nh\u00ecn th\u1ea5y ch\u00fang \u1edf kho\u1ea3ng c\u00e1ch xa nh\u01b0 v\u1eady.<\/p>\n\n<p>Trong \u0111i\u1ec1u ki\u1ec7n \u0111\u1ee7 s\u00e1ng, con ng\u01b0\u1eddi c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra c\u00e1c s\u1ecdc ng\u1ef1a v\u1eb1n \u1edf kho\u1ea3ng c\u00e1ch xa h\u01a1n ng\u1ef1a v\u1eb1n 2,6 l\u1ea7n, xa h\u01a1n s\u01b0 t\u1eed 4,5 l\u1ea7n v\u00e0 xa h\u01a1n linh c\u1ea9u 7,5 l\u1ea7n. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y r\u1eb1ng \u00edt nh\u1ea5t l\u00e0 \u1edf kho\u1ea3ng c\u00e1ch xa, c\u00e1c s\u1ecdc kh\u00f4ng \u0111\u00f3ng vai tr\u00f2 l\u00e0 l\u1edbp ng\u1ee5y trang hi\u1ec7u qu\u1ea3.<\/p>\n\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u c\u0169ng ph\u00e1t hi\u1ec7n ra r\u1eb1ng nh\u1eefng k\u1ebb s\u0103n m\u1ed3i c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1eddng vi\u1ec1n c\u1ee7a ng\u1ef1a v\u1eb1n r\u00f5 r\u00e0ng nh\u01b0 nh\u1eefng con m\u1ed3i kh\u00e1c \u1edf kho\u1ea3ng c\u00e1ch g\u1ea7n. Ng\u1ef1a v\u1eb1n c\u0169ng kh\u00f4ng gi\u1ecfi trong vi\u1ec7c nh\u00ecn th\u1ea5y nhau \u1edf kho\u1ea3ng c\u00e1ch xa, cho th\u1ea5y r\u1eb1ng c\u00e1c s\u1ecdc kh\u00f4ng th\u1ef1c s\u1ef1 mang l\u1ea1i l\u1ee3i th\u1ebf v\u1ec1 m\u1eb7t x\u00e3 h\u1ed9i.<\/p>\n\n<h2 class=\"wp-block-heading\">C\u00e1c l\u00fd thuy\u1ebft thay th\u1ebf<\/h2>\n\n<p>N\u1ebfu s\u1ecdc ng\u1ef1a v\u1eb1n kh\u00f4ng ch\u1ee7 y\u1ebfu \u0111\u1ec3 ng\u1ee5y trang, ch\u00fang c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 nh\u1eefng m\u1ee5c \u0111\u00edch n\u00e0o kh\u00e1c? M\u1ed9t s\u1ed1 l\u00fd thuy\u1ebft thay th\u1ebf \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u01b0a ra:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Ng\u1ee5y trang th\u00e2n c\u00e2y:<\/strong> M\u1ed9t s\u1ed1 nh\u00e0 khoa h\u1ecdc cho r\u1eb1ng s\u1ecdc ng\u1ef1a v\u1eb1n gi\u1ed1ng nh\u01b0 th\u00e2n c\u00e2y, khi\u1ebfn nh\u1eefng k\u1ebb s\u0103n m\u1ed3i b\u1ecb nh\u1ea7m l\u1eabn \u1edf nh\u1eefng khu v\u1ef1c c\u00f3 nhi\u1ec1u c\u00e2y c\u1ed1i.<\/li>\n<li><strong>H\u00f2a nh\u1eadp v\u1edbi n\u1ec1n:<\/strong> Nh\u1eefng ng\u01b0\u1eddi kh\u00e1c cho r\u1eb1ng c\u00e1c s\u1ecdc gi\u00fap ng\u1ef1a v\u1eb1n h\u00f2a nh\u1eadp v\u1edbi m\u00f4i tr\u01b0\u1eddng xung quanh, khi\u1ebfn ch\u00fang kh\u00f3 b\u1ecb nh\u1eefng k\u1ebb s\u0103n m\u1ed3i ph\u00e1t hi\u1ec7n h\u01a1n.<\/li>\n<li><strong>Ng\u0103n ru\u1ed3i \u0111\u1ed1t:<\/strong> M\u1ed9t l\u00fd thuy\u1ebft kh\u00e1c cho r\u1eb1ng c\u00e1c s\u1ecdc c\u1ee7a ng\u1ef1a v\u1eb1n gi\u00fap ng\u0103n ru\u1ed3i \u0111\u1ed1t. Tuy nhi\u00ean, m\u1ed9t nghi\u00ean c\u1ee9u g\u1ea7n \u0111\u00e2y \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Royal Society Open Science kh\u00f4ng t\u00ecm th\u1ea5y b\u1eb1ng ch\u1ee9ng n\u00e0o \u1ee7ng h\u1ed9 l\u00fd thuy\u1ebft n\u00e0y.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Ngu\u1ed3n g\u1ed1c \u0111a y\u1ebfu t\u1ed1<\/h2>\n\n<p>C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u th\u1ef1c hi\u1ec7n nghi\u00ean c\u1ee9u tr\u00ean t\u1ea1p ch\u00ed PLOS One cho r\u1eb1ng c\u00e1c t\u00e1c nh\u00e2n ch\u1ecdn l\u1ecdc th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c s\u1ecdc \u1edf ng\u1ef1a v\u1eb1n c\u00f3 kh\u1ea3 n\u0103ng &#8220;\u0111a d\u1ea1ng v\u00e0 ph\u1ee9c t\u1ea1p&#8221;. N\u00f3i c\u00e1ch kh\u00e1c, c\u00e1c s\u1ecdc c\u1ee7a ng\u1ef1a v\u1eb1n c\u00f3 th\u1ec3 \u0111\u00e3 ti\u1ebfn h\u00f3a v\u00ec nhi\u1ec1u l\u00fd do, bao g\u1ed3m ng\u1ee5y trang, t\u00edn hi\u1ec7u x\u00e3 h\u1ed9i v\u00e0 \u0111i\u1ec1u h\u00f2a th\u00e2n nhi\u1ec7t.<\/p>\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n<p>Cu\u1ed9c tranh lu\u1eadn v\u1ec1 m\u1ee5c \u0111\u00edch c\u1ee7a c\u00e1c s\u1ecdc ng\u1ef1a v\u1eb1n v\u1eabn ch\u01b0a \u0111i \u0111\u1ebfn h\u1ed3i k\u1ebft. Tuy nhi\u00ean, c\u00e1c nghi\u00ean c\u1ee9u m\u1edbi nh\u1ea5t cho th\u1ea5y quan \u0111i\u1ec3m truy\u1ec1n th\u1ed1ng cho r\u1eb1ng c\u00e1c s\u1ecdc l\u00e0 ng\u1ee5y trang c\u00f3 th\u1ec3 kh\u00f4ng ho\u00e0n to\u00e0n ch\u00ednh x\u00e1c. C\u1ea7n c\u00f3 th\u00eam nghi\u00ean c\u1ee9u \u0111\u1ec3 hi\u1ec3u \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 ngu\u1ed3n g\u1ed1c ti\u1ebfn h\u00f3a v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a ki\u1ec3u m\u1eabu \u0111\u1ed9ng v\u1eadt mang t\u00ednh bi\u1ec3u t\u01b0\u1ee3ng n\u00e0y.<\/p>","protected":false},"excerpt":{"rendered":"<p>V\u1eb1n ng\u1ef1a v\u1eb1n: Kh\u00f4ng ch\u1ec9 \u0111\u1ec3 ng\u1ee5y trang? B\u00ed \u1ea9n v\u1ec1 nh\u1eefng s\u1ecdc v\u1eb1n Trong nhi\u1ec1u th\u1ebf k\u1ef7, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 tranh lu\u1eadn v\u1ec1 m\u1ee5c \u0111\u00edch c\u1ee7a nh\u1eefng&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[280],"tags":[309,1832,743,16791,136],"class_list":["post-12419","post","type-post","status-publish","format-standard","hentry","category-zoology","tag-animal-behavior","tag-nature-mystery","tag-camouflage","tag-zebra-stripes","tag-evolution"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/12419","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=12419"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/12419\/revisions"}],"predecessor-version":[{"id":12420,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/12419\/revisions\/12420"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=12419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=12419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=12419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}