“Chu\u1ed3n chu\u1ed3n bay th\u1ea5p tr\u1eddi m\u01b0a, bay cao tr\u1eddi n\u1eafng\u2026”, “Ki\u1ebfn b\u00f2 l\u00ean v\u1ed9i v\u00e0ng l\u00e0 s\u1eafp m\u01b0a b\u00e3o l\u1edbn”. Nh\u00e2n d\u00e2n t\u1eeb l\u00e2u \u0111\u00e3 ch\u00fa \u00fd quan s\u00e1t h\u00e0nh vi kh\u00e1c th\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng v\u1eadt \u0111\u1ec3 d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft.<\/p>\n\n\n\n
V\u00ec sao tr\u01b0\u1edbc khi th\u1eddi ti\u1ebft bi\u1ebfn \u0111\u1ed5i, \u0111\u1ed9ng v\u1eadt l\u1ea1i c\u00f3 nh\u1eefng ph\u1ea3n \u1ee9ng kh\u00e1c th\u01b0\u1eddng?<\/p>\n\n\n\n
T h\u1eddi ti\u1ebft bi\u1ebfn \u0111\u1ed5i l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh v\u1eadt l\u00fd, n\u00f3 k\u00e8m theo s\u1ef1 bi\u1ebfn \u0111\u1ed5i t\u00ecnh h\u00ecnh c\u1ee7a chuy\u1ec3n \u0111\u1ed9ng, nhi\u1ec7t \u0111\u1ed9, h\u01a1i n\u01b0\u1edbc c\u1ee7a kh\u00f4ng kh\u00ed v\u00e0 c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng nh\u01b0 quang h\u1ecdc, \u00e2m thanh, s\u00f3ng \u0111i\u1ec7n. Nh\u1eefng bi\u1ebfn \u0111\u1ed5i n\u00e0y th\u01b0\u1eddng con ng\u01b0\u1eddi kh\u00f4ng c\u1ea3m th\u1ea5y \u0111\u01b0\u1ee3c, nh\u01b0ng c\u00f3 m\u1ed9t s\u1ed1 \u0111\u1ed9ng v\u1eadt c\u00f3 gi\u00e1c quan c\u1ea3m gi\u00e1c r\u1ea5t nh\u1ea1y s\u1ea3n sinh ra sinh l\u00fd v\u00e0 h\u00e0nh vi ph\u1ea3n \u1ee9ng kh\u00e1c th\u01b0\u1eddng.<\/p>\n\n\n\n
S\u1ef1 ti\u1ebfn h\u00f3a c\u1ee7a sinh v\u1eadt \u0111\u00e3 tr\u1ea3i qua l\u1ecbch s\u1eed th\u00edch \u1ee9ng l\u00e2u d\u00e0i, qua bao phen ch\u00ecm n\u1ed5i v\u00e0 s\u1ef1 kh\u1ea3o nghi\u1ec7m gay g\u1eaft c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu. T rong qu\u00e1 tr\u00ecnh sinh v\u1eadt \u0111\u1ea5u tranh v\u1edbi bi\u1ebfn \u0111\u1ed5i c\u1ee7a thi\u00ean nhi\u00ean, n\u1ebfu lo\u00e0i n\u00e0o kh\u00f4ng th\u00edch \u1ee9ng th\u00ec b\u1ecb \u0111\u00e0o th\u1ea3i, m\u1ed9t s\u1ed1 lo\u00e0i \u0111\u01b0\u1ee3c r\u00e8n luy\u1ec7n n\u00ean c\u00f3 nh\u1eefng gi\u00e1c quan n\u00e0o \u0111\u00f3 ng\u00e0y c\u00e0ng ho\u00e0n thi\u1ec7n h\u01a1n. Cho n\u00ean sinh v\u1eadt \u0111\u1ed1i v\u1edbi s\u1ef1 bi\u1ebfn \u0111\u1ed5i c\u1ee7a m\u00f4i tr\u01b0\u1eddng th\u1ec3 hi\u1ec7n ra nh\u1eefng ph\u1ea3n \u1ee9ng kh\u00e1c th\u01b0\u1eddng, d\u1ea7n d\u1ea7n ph\u00e1t tri\u1ec3n th\u00e0nh b\u1ea3n n\u0103ng t\u00ecm \u0111\u1ebfn c\u00e1i l\u1ee3i, tr\u00e1nh c\u00e1i h\u1ea1i \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u00ecnh.<\/p>\n\n\n\n
C\u00e1c lo\u00e0i sinh v\u1eadt s\u1ed1ng l\u00e2u d\u00e0i trong m\u1ed9t m\u00f4i tr\u01b0\u1eddng nh\u1ea5t \u0111\u1ecbnh n\u00e0o \u0111\u00f3, m\u1ed9t s\u1ed1 gi\u00e1c quan c\u1ee7a ch\u00fang \u0111\u1eb7c bi\u1ec7t ph\u00e1t tri\u1ec3n. C\u00f2n \u0111\u1ed1i v\u1edbi lo\u00e0i ng\u01b0\u1eddi m\u00e0 n\u00f3i nh\u1eefng gi\u00e1c quan n\u00e0y l\u1ea1i tho\u00e1i ho\u00e1 \u0111i. V\u00ed d\u1ee5 c\u00e1 s\u1ed1ng l\u00e2u \u0111\u1eddi d\u01b0\u1edbi n\u01b0\u1edbc, h\u00ecnh th\u00e0nh \u0111\u01b0\u1eddng g\u1ea1ch gi\u00e1c quan \u1edf hai b\u00ean m\u00ecnh, lo\u00e0i chim bay trong kh\u00f4ng trung cho n\u00ean \u1edf chi ph\u1ee5 c\u00f3 b\u1ed9 ph\u1eadn nh\u1ecf nh\u1ea1y c\u1ea3m v\u1edbi rung \u0111\u1ed9ng. C\u00f2n lo\u00e0i ng\u01b0\u1eddi s\u1ed1ng trong m\u00f4i tr\u01b0\u1eddng kh\u00e1c v\u1edbi ch\u00fang, cho n\u00ean d\u00f9 ban \u0111\u1ea7u c\u00f3 lo\u1ea1i gi\u00e1c quan n\u00e0y nh\u01b0ng v\u1ec1 sau c\u0169ng tho\u00e1i h\u00f3a d\u1ea7n \u0111i.<\/p>\n\n\n\n
M\u1ed9t s\u1ed1 lo\u00e0i sinh v\u1eadt c\u00f3 c\u01a1 quan c\u1ea3m th\u1ee5 r\u1ea5t nh\u1ea1y v\u1edbi s\u00f3ng \u00e2m t\u1ea7n s\u1ed1 r\u1ea5t th\u1ea5p. C\u00f3 lo\u00e0i \u0111\u1ed9ng v\u1eadt g\u1ecdi l\u00e0 h\u1ed7ng tr\u00e0ng th\u1ee7y m\u1eabu c\u00f3 th\u1ec3 c\u1ea3m gi\u00e1c \u0111\u01b0\u1ee3c c\u01a1n gi\u00f3 l\u1ed1c t\u1eeb v\u00f9ng xa \u0111ang chuy\u1ec3n \u0111\u1ed9ng \u0111\u1ebfn. Gi\u00f3 l\u1ed1c chuy\u1ec3n \u0111\u1ed9ng tr\u00ean bi\u1ec3n, t\u1ed1c \u0111\u1ed9 gi\u00f3 r\u1ea5t l\u1edbn, n\u00f3 ma s\u00e1t v\u1edbi s\u00f3ng bi\u1ec3n, ph\u00e1t sinh ra s\u00f3ng \u00e2m thanh th\u1ee9 ph\u00e1t c\u00f3 t\u1ea7n s\u1ed1 r\u1ea5t th\u1ea5p, h\u00f2a l\u1eabn v\u00e0o \u00e2m thanh th\u00e9t g\u00e0o c\u1ee7a s\u00f3ng. S\u00f3ng \u00e2m thanh th\u1ee9 ph\u00e1t n\u00e0y lan truy\u1ec1n nhanh h\u01a1n t\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a c\u01a1n l\u1ed1c, n\u00f3 t\u00e1c \u0111\u1ed9ng v\u00e0o b\u00faa \u0111\u00e1 nh\u1ecf trong tai lo\u00e0i h\u1ed7ng tr\u00e0ng, sau \u0111\u00f3 th\u00f4ng tin n\u00e0y k\u00edch th\u00edch l\u00ean c\u01a1 quan c\u1ea3m gi\u00e1c, khi\u1ebfn cho lo\u00e0i v\u1eadt n\u00e0y nhanh ch\u00f3ng r\u1eddi xa b\u1edd \u0111i v\u00e0o \u0111\u00e1y bi\u1ec3n \u0111\u1ec3 tr\u00e1nh b\u1ecb s\u00f3ng va \u0111\u1eadp. V\u00ec v\u1eady, c\u0103n c\u1ee9 v\u00e0o h\u00e0nh vi c\u1ee7a lo\u00e0i h\u1ed7ng tr\u00e0ng ta c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c s\u1eafp c\u00f3 c\u01a1n l\u1ed1c \u00e1p th\u1ea5p \u0111\u1ebfn.<\/p>\n\n\n\n
C\u00f3 m\u1ed9t s\u1ed1 sinh v\u1eadt c\u00f3 c\u01a1 quan c\u1ea3m gi\u00e1c r\u1ea5t nh\u1ea1y v\u1edbi kh\u00f4ng kh\u00ed n\u00f3ng v\u00e0 \u1ea9m \u01b0\u1edbt. T h\u1eddi ti\u1ebft n\u00f3ng v\u00e0 \u1ea9m \u01b0\u1edbt th\u01b0\u1eddng x\u1ea3y ra tr\u01b0\u1edbc khi c\u00f3 lu\u1ed3ng kh\u00f4ng kh\u00ed l\u1ea1nh tr\u00e0n \u0111\u1ebfn ho\u1eb7c v\u1ec1 m\u00f9a h\u00e8 l\u00e0 s\u1eafp c\u00f3 c\u01a1n gi\u00f4ng. R\u1eafn l\u00e0 lo\u00e0i nh\u1ea1y c\u1ea3m v\u1edbi kh\u00f4ng kh\u00ed n\u00f3ng v\u00e0 \u1ea9m \u01b0\u1edbt. T rong m\u00e1 lo\u00e0i r\u1eafn c\u00f3 c\u01a1 quan c\u1ea3m gi\u00e1c r\u1ea5t nh\u1ea1y v\u1edbi s\u1ef1 bi\u1ebfn \u0111\u1ed5i \u0111\u1ed9 n\u00f3ng. Ph\u1ea3n \u1ee9ng n\u00e0y s\u1ebd k\u00edch th\u00edch r\u1eafn b\u00f2 ra ho\u1ea1t \u0111\u1ed9ng. Cho n\u00ean khi c\u00f3 r\u1eafn b\u00f2 qua \u0111\u01b0\u1eddng l\u00e0 t\u00edn hi\u1ec7u s\u1eafp c\u00f3 c\u01a1n gi\u00f4ng.<\/p>\n\n\n\n
C\u00f3 nh\u1eefng lo\u00e0i \u0111\u1ed9ng v\u1eadt r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi \u0111\u1ed9 \u1ea9m c\u1ee7a kh\u00f4ng kh\u00ed v\u00e0 nhanh ch\u00f3ng thay \u0111\u1ed5i th\u00f3i quen trong cu\u1ed9c s\u1ed1ng c\u1ee7a n\u00f3. V\u00ed d\u1ee5 nh\u00e1i l\u00e0 lo\u00e0i \u0111\u1ed9ng v\u1eadt l\u01b0\u1ee1ng th\u00ea, c\u00f4ng n\u0103ng h\u00f4 h\u1ea5p c\u1ee7a ph\u1ed5i kh\u00f4ng l\u1edbn. Cho n\u00ean ch\u1ec9 d\u1ef1a v\u00e0o ph\u1ed5i \u0111\u1ec3 th\u1edf kh\u00f4ng th\u1ec3 th\u1ecfa m\u00e3n nhu c\u1ea7u m\u00e0 c\u00f2n ph\u1ea3i th\u1edf b\u1eb1ng da. Mu\u1ed1n th\u1edf b\u1eb1ng da th\u00ec da ph\u1ea3i \u01b0\u1edbt nh\u00e8m \u0111\u1ec3 oxi c\u1ee7a kh\u00f4ng kh\u00ed tan v\u00e0o ni\u00eam m\u1ea1c da, t\u1eeb \u0111\u00f3 \u0111i v\u00e0o m\u00e1u. N\u1ebfu da b\u1ecb kh\u00f4 th\u00ec nh\u00e1i th\u1edf r\u1ea5t kh\u00f3 kh\u0103n, cho n\u00ean nh\u00e1i r\u1ea5t s\u1ee3 \u00e1nh s\u00e1ng v\u00e0 kh\u00f4ng kh\u00ed kh\u00f4 r\u00e1o. T r\u01b0\u1edbc khi tr\u1eddi m\u01b0a kh\u00f4ng kh\u00ed kh\u00e1 \u1ea9m, th\u00edch h\u1ee3p cho th\u1edf da, do \u0111\u00f3 c\u00f3c nh\u00e1i ho\u1ea1t \u0111\u1ed9ng s\u00f4i n\u1ed5i h\u01a1n b\u00ecnh th\u01b0\u1eddng, ch\u00fang k\u00eau to. Cho n\u00ean ng\u1ea1n ng\u1eef n\u00f3i: “C\u00f3c nh\u00e1i ra hang l\u00e0 tr\u1eddi s\u1eafp m\u01b0a”.<\/p>\n\n\n\n
C\u00f3 nh\u1eefng sinh v\u1eadt kh\u00e1 nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 thay \u0111\u1ed5i h\u01b0\u1edbng v\u00e0 t\u1ed1c \u0111\u1ed9 c\u1ee7a gi\u00f3. V\u00ed d\u1ee5 tr\u01b0\u1edbc khi c\u00f3 c\u01a1n l\u1ed1c, h\u00e0ng lo\u1ea1t chim bi\u1ec3n \u0111ua nhau bay v\u00e0o b\u1edd. Ch\u00fang bay \u0111\u1ebfn m\u1ec7t m\u1ecfi, th\u1eadm ch\u00ed r\u01a1i xu\u1ed1ng bi\u1ec3n ho\u1eb7c \u0111\u1ed7 l\u1ea1i tr\u00ean boong t\u00e0u, d\u00f9 c\u00f3 ng\u01b0\u1eddi b\u1eaft c\u0169ng kh\u00f4ng s\u1ee3. \u0110\u00f3 l\u00e0 v\u00ec gi\u00f3 l\u1ed1c \u0111ang th\u1ed5i t\u1eeb ngo\u00e0i bi\u1ec3n v\u00e0o, ch\u00e2n c\u1ee7a lo\u00e0i chim c\u00f3 b\u1ed9 ph\u1eadn r\u1ea5t nh\u1ecf, c\u1ea3m gi\u00e1c \u0111\u01b0\u1ee3c. Cho n\u00ean chim bi\u1ec3n th\u01b0\u1eddng tr\u1edf th\u00e0nh s\u1ee9 gi\u1ea3 \u0111\u1eb7c bi\u1ec7t b\u00e1o cho con ng\u01b0\u1eddi bi\u1ebft gi\u00f3 l\u1ed1c s\u1eafp \u0111\u1ebfn.<\/p>\n\n\n\n
C\u00f3 m\u1ed9t s\u1ed1 sinh v\u1eadt r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi bi\u1ebfn \u0111\u1ed5i \u00e1p su\u1ea5t c\u1ee7a kh\u00f4ng kh\u00ed. Khi kh\u00f4ng kh\u00ed bi\u1ebfn \u0111\u1ed5i, \u00e1p su\u1ea5t th\u01b0\u1eddng t\u0103ng l\u00ean hay gi\u1ea3m xu\u1ed1ng. T r\u01b0\u1edbc khi m\u01b0a gi\u00f3, \u00e1p su\u1ea5t gi\u1ea3m xu\u1ed1ng khi\u1ebfn cho oxi tan trong n\u01b0\u1edbc gi\u1ea3m th\u1ea5p. L\u00fac \u0111\u00f3 c\u00e1, ch\u1ea1ch, v.v. \u1ede trong n\u01b0\u1edbc kh\u00f4ng c\u00f3 \u0111\u1ee7 oxi \u0111\u1ec3 th\u1edf, ph\u1ea3i n\u1ed5i l\u00ean m\u1eb7t n\u01b0\u1edbc th\u1edf. Cho n\u00ean c\u00e2u n\u00f3i: “C\u00e1 nh\u1ea3y l\u00ean m\u1eb7t n\u01b0\u1edbc l\u00e0 s\u1eafp c\u00f3 m\u01b0a”, “Ch\u1ea1ch tr\u1ed3i l\u00ean l\u1eb7n xu\u1ed1ng l\u00e0 s\u1eafp m\u01b0a to”. Nh\u1eefng c\u00e2u ng\u1ea1n ng\u1eef n\u00e0y \u0111\u1ec1u c\u00f3 l\u00fd c\u1ea3.<\/p>\n\n\n\n
C\u00f3 nh\u1eefng sinh v\u1eadt c\u00f3 kh\u1ea3 n\u0103ng bi\u1ebft th\u1eddi ti\u1ebft thay \u0111\u1ed5i m\u00e0 con ng\u01b0\u1eddi kh\u00f4ng th\u1ec3 s\u00e1nh \u0111\u01b0\u1ee3c. Nh\u01b0ng nh\u01b0 th\u1ebf kh\u00f4ng ph\u1ea3i l\u00e0 n\u00f3i nh\u1eefng sinh v\u1eadt n\u00e0y cao minh h\u01a1n con ng\u01b0\u1eddi. Nh\u1eefng ph\u1ea3n \u1ee9ng bi\u1ebfn \u0111\u1ed5i th\u1eddi ti\u1ebft c\u1ee7a sinh v\u1eadt tuy r\u1ea5t nh\u1ea1y c\u1ea3m, nh\u01b0ng ch\u00fang kh\u00f4ng bi\u1ebft d\u1ef1 b\u00e1o, ch\u1ec9 c\u00f3 th\u1ec3 cung c\u1ea5p cho con ng\u01b0\u1eddi nh\u1eefng c\u0103n c\u1ee9 m\u00e0 th\u00f4i.<\/p>\n\n\n\n
T \u1eeb kho\u00e1: H\u00e0nh vi kh\u00e1c th\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng v\u1eadt.<\/p>\n","protected":false},"excerpt":{"rendered":"
“Chu\u1ed3n chu\u1ed3n bay th\u1ea5p tr\u1eddi m\u01b0a, bay cao tr\u1eddi n\u1eafng\u2026”, “Ki\u1ebfn b\u00f2 l\u00ean v\u1ed9i v\u00e0ng l\u00e0 s\u1eafp m\u01b0a b\u00e3o l\u1edbn”. Nh\u00e2n d\u00e2n t\u1eeb l\u00e2u \u0111\u00e3 ch\u00fa \u00fd quan s\u00e1t h\u00e0nh vi kh\u00e1c th\u01b0\u1eddng c\u1ee7a \u0111\u1ed9ng v\u1eadt \u0111\u1ec3 d\u1ef1 b\u00e1o th\u1eddi ti\u1ebft. V\u00ec sao tr\u01b0\u1edbc khi th\u1eddi ti\u1ebft bi\u1ebfn \u0111\u1ed5i, \u0111\u1ed9ng v\u1eadt l\u1ea1i c\u00f3 nh\u1eefng ph\u1ea3n […]<\/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":[15,19],"tags":[],"class_list":["post-10015","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-tu-nhien"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10015","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=10015"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/10015\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=10015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=10015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=10015"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}