{"id":14145,"date":"2021-11-27T14:21:27","date_gmt":"2021-11-27T07:21:27","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=14145"},"modified":"2021-11-27T14:21:28","modified_gmt":"2021-11-27T07:21:28","slug":"loai-ran-co-xuong-hay-khong","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/loai-ran-co-xuong-hay-khong\/","title":{"rendered":"Lo\u00e0i r\u1eafn c\u00f3 x\u01b0\u01a1ng hay kh\u00f4ng?"},"content":{"rendered":"\n<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 3 &#8211; Arkady Leokum<\/p>\n\n\n\n<p>C\u00f3 hai \u0111i\u1ec1u \u1ea5n t\u01b0\u1ee3ng khi ta quan s\u00e1t con r\u1eafn \u0111ang tr\u01b0\u1eddn. \u0111i\u1ec1u th\u1ee9 nh\u1ea5t, d\u0129 nhi\u00ean, l\u00e0 c\u00e1ch th\u1ee9c di chuy\u1ec3n \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3. B\u1ea1n kh\u00f4ng h\u1ec1 th\u1ea5y ch\u00e2n, c\u1eb3ng g\u00ec c\u1ee7a n\u00f3 m\u00e0 ch\u1ec9 th\u1ea5y n\u00f3 kh\u00f4ng l\u00e0m g\u00ec kh\u00e1c ngo\u00e0i \u0111\u1ea9y v\u00e0 k\u00e9o ch\u00ednh c\u00e1i th\u00e2n x\u00e1c c\u1ee7a n\u00f3. \u1ea4y v\u1eady m\u00e0 n\u00f3 v\u1eabn di chuy\u1ec3n \u0111\u01b0\u1ee3c. V\u00e0 \u0111i\u1ec1u th\u1ee9 hai l\u00e0, khi di chuy\u1ec3n, th\u00e2n x\u00e1c n\u00f3 nh\u01b0 l\u00e0 \u201ctr\u00f4i\u201d tr\u00ean m\u1eb7t \u0111\u1ea5t, m\u1ec1m m\u1ea1i c\u1ee9 nh\u01b0 th\u1ec3 n\u00f3 kh\u00f4ng c\u00f3 x\u01b0\u01a1ng g\u00ec c\u1ea3.<\/p>\n\n\n\n<p>Th\u1eadt ra r\u1eafn c\u00f3 x\u01b0\u01a1ng v\u00e0 c\u00f3 nhi\u1ec1u x\u01b0\u01a1ng n\u1eefa k\u00eca. R\u1eafn c\u00f3 c\u1ed9t x\u01b0\u01a1ng s\u1ed1ng g\u1ed3m nhi\u1ec1u \u0111\u1ed1t x\u01b0\u01a1ng. N\u1ed1i hai b\u00ean c\u1ed9t s\u1ed1ng l\u00e0 t\u1eebng c\u1eb7p x\u01b0\u01a1ng s\u01b0\u1eddn. C\u00f3 lo\u1ea1i r\u1eafn c\u00f3 t\u1edbi 145 c\u1eb7p x\u01b0\u01a1ng s\u01b0\u1eddn k\u1ebft hai b\u00ean c\u1ed9t x\u01b0\u01a1ng s\u1ed1ng u\u1ed1n \u0111\u01b0\u1ee3c r\u1ea5t d\u1ebbo. H\u1ed1c v\u00e0 \u0111\u1ea7u kh\u1edbp x\u01b0\u01a1ng \u0111\u00e3 n\u1ed1i k\u1ebft c\u00e1c \u0111\u1ed1t x\u01b0\u01a1ng s\u1ed1ng th\u00e0nh m\u1ed9t c\u1ed9t s\u1ed1ng. M\u1ed7i \u0111\u1ed1t s\u1ed1ng &#8211; ph\u00eda hai b\u00ean &#8211; l\u1ea1i c\u00f3 m\u1ed9t c\u1eb7p x\u01b0\u01a1ng s\u01b0\u1eddn. B\u1edfi v\u1eady m\u00e0 b\u1ed9 x\u01b0\u01a1ng s\u1ed1ng v\u00e0 x\u01b0\u01a1ng s\u01b0\u1eddn c\u1ee7a r\u1eafn v\u1eadn \u0111\u1ed9ng r\u1ea5t d\u1ec5 d\u00e0ng, tho\u1ea3i m\u00e1i.<\/p>\n\n\n\n<p>B\u00ed quy\u1ebft c\u1ee7a s\u1ef1 di chuy\u1ec3n c\u1ee7a r\u1eafn n\u1eb1m \u1edf b\u1ed9 x\u01b0\u01a1ng s\u01b0\u1eddn n\u00e0y. Tr\u01b0\u1edbc h\u1ebft m\u1ed7i c\u1eb7p x\u01b0\u01a1ng s\u01b0\u1eddn c\u00f3 th\u1ec3 v\u1eadn \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp v\u1edbi nh\u1eefng c\u1eb7p kh\u00e1c. K\u1ebf \u0111\u00f3, m\u1ed7i \u0111\u1ea7u ngo\u00e0i c\u1ee7a x\u01b0\u01a1ng s\u01b0\u1eddn \u0111\u01b0\u1ee3c m\u1ed9t b\u1eafp th\u1ecbt n\u1ed1i li\u1ec1n v\u1edbi m\u1ed9t c\u00e1i v\u1ea3y h\u00ecnh ch\u1eef nh\u1eadt n\u1eb1m ph\u00eda ngo\u00e0i b\u1ee5ng c\u1ee7a con r\u1eafn. X\u01b0\u01a1ng s\u01b0\u1eddn b\u1eafp th\u1ecbt v\u00e0 v\u1ea3y v\u1eadn \u0111\u1ed9ng theo m\u1ed9t nh\u1ecbp nh\u01b0 m\u1ed9t c\u00e1i ch\u00e2n.<\/p>\n\n\n\n<p>Ngo\u00e0i b\u1ed9 x\u01b0\u01a1ng s\u1ed1ng, x\u01b0\u01a1ng s\u01b0\u1eddn, r\u1eafn c\u00f2n c\u00f3 x\u01b0\u01a1ng s\u1ecd v\u00e0 x\u01b0\u01a1ng h\u00e0m. R\u1eafn c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng mi\u1ec7ng &#8211; t\u1ee9c l\u00e0 h\u00e1 c\u00e1i h\u00e0m d\u01b0\u1edbi &#8211; th\u1eadt l\u1edbn khi nu\u1ed1t m\u1ed3i. N\u00f3 l\u00e0m \u0111\u01b0\u1ee3c nh\u01b0 v\u1eady v\u00ec c\u00e1i x\u01b0\u01a1ng quanh mi\u1ec7ng \u0111\u01b0\u1ee3c n\u1ed1i k\u1ebft ch\u1eb7t ch\u1ebd v\u1edbi cu\u1ed1ng h\u1ecdng ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u1edbi x\u01b0\u01a1ng s\u1ecd.<\/p>\n\n\n\n<p>Nh\u00ecn con r\u1eafn nung n\u00fac nh\u1eefng th\u1ecbt, nh\u1ea5t l\u00e0 khi nh\u00ecn n\u00f3 b\u00f2, ta t\u01b0\u1edfng \u0111\u1ea7u n\u00f3 kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn n\u00e0o c\u1ee9ng. Th\u1eadt ra r\u1eafn c\u00f3 nhi\u1ec1u x\u01b0\u01a1ng, v\u00e0 x\u01b0\u01a1ng r\u1eafn c\u0169ng c\u1ee9ng ch\u1ee9 kh\u00f4ng m\u1ec1m nh\u01b0 s\u1ee5n \u0111\u00e2u.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>T\u1eeb kh\u00f3a t\u00ecm ki\u1ebfm: H\u00e3y Tr\u1ea3 L\u1eddi Em T\u1ea1i Sao? \u2013 T\u1eadp 3 &#8211; Arkady Leokum C\u00f3 hai \u0111i\u1ec1u \u1ea5n t\u01b0\u1ee3ng khi ta quan s\u00e1t con r\u1eafn \u0111ang tr\u01b0\u1eddn. \u0111i\u1ec1u th\u1ee9 nh\u1ea5t, d\u0129 nhi\u00ean, l\u00e0 c\u00e1ch th\u1ee9c di chuy\u1ec3n \u0111\u1eb7c bi\u1ec7t c\u1ee7a n\u00f3. B\u1ea1n kh\u00f4ng h\u1ec1 th\u1ea5y ch\u00e2n, c\u1eb3ng g\u00ec c\u1ee7a n\u00f3 m\u00e0 ch\u1ec9 th\u1ea5y [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15],"tags":[],"class_list":["post-14145","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=14145"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14145\/revisions"}],"predecessor-version":[{"id":14146,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/14145\/revisions\/14146"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=14145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=14145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=14145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}