Nh\u1eefng b\u00e0 m\u1eb9 b\u1ea1ch tu\u1ed9c n\u1ed5i ti\u1ebfng v\u1edbi s\u1ef1 t\u1eadn t\u1ee5y h\u1ebft m\u1ef1c v\u1edbi con non. Ch\u00fang c\u1ea3nh gi\u00e1c b\u1ea3o v\u1ec7 tr\u1ee9ng c\u1ee7a m\u00ecnh, g\u1ea7n nh\u01b0 hy sinh to\u00e0n b\u1ed9 th\u1ee9c \u0103n trong th\u1eddi gian n\u00e0y. Khi nh\u1eefng ng\u00e0y tr\u00f4i th\u00e0nh nh\u1eefng tu\u1ea7n, c\u01a1 th\u1ec3 c\u1ee7a nh\u1eefng b\u00e0 m\u1eb9 n\u00e0y suy y\u1ebfu, nh\u01b0ng s\u1ef1 hy sinh c\u1ee7a ch\u00fang \u0111\u1ea3m b\u1ea3o t\u1ef7 l\u1ec7 s\u1ed1ng s\u00f3t cao h\u01a1n cho con c\u1ee7a ch\u00fang.<\/p>\n\n
Trong s\u1ed1 nh\u1eefng b\u00e0 m\u1eb9 b\u1ea1ch tu\u1ed9c, c\u00f3 m\u1ed9t lo\u00e0i n\u1ed5i b\u1eadt v\u1edbi s\u1ef1 t\u1eadn t\u1ee5y v\u00f4 song: b\u1ea1ch tu\u1ed9c bi\u1ec3n s\u00e2u nh\u1ee3t nh\u1ea1t, Graneledone boreopacifica<\/em>. Theo m\u1ed9t b\u00e1o c\u00e1o c\u1ee7a KQED Science, sinh v\u1eadt \u0111\u00e1ng ch\u00fa \u00fd n\u00e0y d\u00e0nh t\u1edbi 53 th\u00e1ng\u2014g\u1ea7n b\u1ed1n n\u0103m r\u01b0\u1ee1i!\u2014\u0111\u1ec3 canh g\u00e1c tr\u1ee9ng c\u1ee7a m\u00ecnh.<\/p>\n\n C\u00e1c nh\u00e0 khoa h\u1ecdc t\u1eeb Vi\u1ec7n nghi\u00ean c\u1ee9u th\u1ee7y cung Monterey Bay \u0111\u00e3 ph\u00e1t hi\u1ec7n ra “b\u00e0 m\u1eb9 b\u1ea1ch tu\u1ed9c” ki\u00ean \u0111\u1ecbnh n\u00e0y trong c\u00e1c cu\u1ed9c kh\u1ea3o s\u00e1t \u0111\u01b0\u1ee3c ti\u1ebfn h\u00e0nh c\u00e1ch m\u1eb7t n\u01b0\u1edbc bi\u1ec3n kho\u1ea3ng m\u1ed9t d\u1eb7m t\u1ea1i Monterey Canyon. Ph\u01b0\u01a1ng ti\u1ec7n \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa c\u1ee7a h\u1ecd l\u1ea7n \u0111\u1ea7u ti\u00ean ph\u00e1t hi\u1ec7n ra con b\u1ea1ch tu\u1ed9c nh\u1ecf n\u00e0y v\u00e0o n\u0103m 2007, ngay sau khi n\u00f3 \u0111\u1ebb kho\u1ea3ng 160 qu\u1ea3 tr\u1ee9ng.<\/p>\n\n Trong b\u1ed1n n\u0103m ti\u1ebfp theo, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 th\u1ef1c hi\u1ec7n 18 chuy\u1ebfn th\u0103m \u0111\u1ebfn \u0111\u1ecba \u0111i\u1ec3m l\u00e0m t\u1ed5 c\u1ee7a b\u1ea1ch tu\u1ed9c. Trong m\u1ed7i chuy\u1ebfn th\u0103m, h\u1ecd \u0111\u1ec1u quan s\u00e1t th\u1ea5y con b\u1ea1ch tu\u1ed9c b\u1ea3o v\u1ec7 tr\u1ee9ng c\u1ee7a m\u00ecnh, nh\u1eefng qu\u1ea3 tr\u1ee9ng n\u00e0y d\u1ea7n l\u1edbn h\u01a1n. \u0110\u00e1ng ch\u00fa \u00fd l\u00e0 h\u1ecd kh\u00f4ng bao gi\u1edd ch\u1ee9ng ki\u1ebfn n\u00f3 \u0103n trong to\u00e0n b\u1ed9 th\u1eddi gian n\u00e0y.<\/p>\n\n Trong chuy\u1ebfn th\u0103m cu\u1ed1i c\u00f9ng, con b\u1ea1ch tu\u1ed9c \u0111\u00e3 bi\u1ebfn m\u1ea5t v\u00e0 ch\u1ec9 c\u00f2n l\u1ea1i v\u1ecf tr\u1ee9ng r\u1ed7ng. M\u1ed9t chuy\u1ebfn th\u0103m ti\u1ebfp theo \u0111\u00e3 ph\u00e1t hi\u1ec7n ra m\u1ed9t s\u1ed1 con b\u1ea1ch tu\u1ed9c non \u0111ang b\u00f2 g\u1ea7n \u0111\u1ecba \u0111i\u1ec3m l\u00e0m t\u1ed5, cho th\u1ea5y s\u1ef1 ch\u0103m s\u00f3c kh\u00f4ng ng\u1eebng ngh\u1ec9 c\u1ee7a ng\u01b0\u1eddi m\u1eb9 \u0111\u00e3 \u0111\u01b0\u1ee3c \u0111\u1ec1n \u0111\u00e1p.<\/p>\n\n Th\u1eddi gian \u1ea5p tr\u1ee9ng k\u00e9o d\u00e0i c\u1ee7a Graneledone boreopacifica<\/em> nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c ch\u0103m s\u00f3c c\u1ee7a cha m\u1eb9 trong vi\u1ec7c \u0111\u1ea3m b\u1ea3o s\u1ef1 s\u1ed1ng c\u00f2n c\u1ee7a con non. B\u1eb1ng c\u00e1ch cung c\u1ea5p s\u1ef1 b\u1ea3o v\u1ec7 v\u00e0 oxy li\u00ean t\u1ee5c, con b\u1ea1ch tu\u1ed9c m\u1eb9 l\u00e0m t\u0103ng c\u01a1 h\u1ed9i tr\u1ee9ng n\u1edf th\u00e0nh c\u00f4ng v\u00e0 ph\u00e1t tri\u1ec3n th\u00e0nh nh\u1eefng con b\u1ea1ch tu\u1ed9c kh\u1ecfe m\u1ea1nh.<\/p>\n\n B\u1ea1ch tu\u1ed9c bi\u1ec3n s\u00e2u \u0111\u00e3 ti\u1ebfn h\u00f3a nh\u1eefng th\u00edch nghi \u0111\u1ed9c \u0111\u00e1o \u0111\u1ec3 t\u1ed3n t\u1ea1i trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t c\u1ee7a ch\u00fang. C\u01a1 th\u1ec3 m\u1ec1m, gi\u1ed1ng nh\u01b0 th\u1ea1ch c\u1ee7a ch\u00fang cho ph\u00e9p ch\u00fang ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t l\u1edbn \u1edf \u0111\u1ed9 s\u00e2u n\u00e0y. Ch\u00fang c\u0169ng s\u1edf h\u1eefu c\u00e1c lo\u1ea1i enzyme \u0111\u1eb7c bi\u1ec7t ng\u0103n kh\u00f4ng cho c\u00e1c m\u00f4 c\u1ee7a ch\u00fang b\u1ecb \u0111\u00f3ng b\u0103ng trong v\u00f9ng n\u01b0\u1edbc l\u1ea1nh gi\u00e1.<\/p>\n\n C\u00e2u chuy\u1ec7n v\u1ec1 ng\u01b0\u1eddi m\u1eb9 b\u1ea1ch tu\u1ed9c bi\u1ec3n s\u00e2u l\u00e0 minh ch\u1ee9ng cho s\u1ee9c b\u1ec1n v\u00e0 s\u1ef1 hy sinh c\u1ee7a nh\u1eefng sinh v\u1eadt phi th\u01b0\u1eddng n\u00e0y. L\u00f2ng t\u1eadn t\u1ee5y kh\u00f4ng ng\u1eebng c\u1ee7a ch\u00fang \u0111\u1ed1i v\u1edbi con non c\u1ee7a ch\u00fang \u0111\u1ea3m b\u1ea3o cho s\u1ef1 ti\u1ebfp n\u1ed1i c\u1ee7a lo\u00e0i ch\u00fang \u1edf \u0111\u1ed9 s\u00e2u kh\u00f4ng th\u1ec3 tha th\u1ee9 c\u1ee7a \u0111\u1ea1i d\u01b0\u01a1ng.<\/p>\n\n Ph\u00e1t hi\u1ec7n ra th\u1eddi gian \u1ea5p tr\u1ee9ng d\u00e0i nh\u1ea5t t\u1eebng \u0111\u01b0\u1ee3c ghi nh\u1eadn \u1edf m\u1ed9t con b\u1ea1ch tu\u1ed9c cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft gi\u00e1 tr\u1ecb v\u1ec1 h\u00e0nh vi c\u1ee7a m\u1eb9 v\u00e0 l\u1ecbch s\u1eed cu\u1ed9c \u0111\u1eddi c\u1ee7a nh\u1eefng lo\u00e0i \u0111\u1ed9ng v\u1eadt b\u00ed \u1ea9n n\u00e0y. N\u00f3 c\u0169ng nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c theo d\u00f5i v\u00e0 quan s\u00e1t l\u00e2u d\u00e0i trong vi\u1ec7c hi\u1ec3u \u0111\u01b0\u1ee3c s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a c\u00e1c h\u1ec7 sinh th\u00e1i bi\u1ec3n.<\/p>","protected":false},"excerpt":{"rendered":" B\u1ea1ch tu\u1ed9c bi\u1ec3n s\u00e2u ph\u00e1 k\u1ef7 l\u1ee5c v\u1edbi th\u1eddi gian \u1ea5p tr\u1ee9ng l\u00e2u nh\u1ea5t T\u00ecnh m\u1eabu t\u1eed Nh\u1eefng b\u00e0 m\u1eb9 b\u1ea1ch tu\u1ed9c n\u1ed5i ti\u1ebfng v\u1edbi s\u1ef1 t\u1eadn t\u1ee5y h\u1ebft m\u1ef1c…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[23898,243,3692,265,23899],"class_list":["post-18266","post","type-post","status-publish","format-standard","hentry","category-marine-biology","tag-deep-sea-octopus","tag-resilience","tag-sacrifice","tag-marine-life","tag-brooding-period"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18266","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\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=18266"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18266\/revisions"}],"predecessor-version":[{"id":18267,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/18266\/revisions\/18267"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=18266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=18266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=18266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Ng\u01b0\u1eddi b\u1ea3o v\u1ec7 t\u1eadn t\u1ee5y<\/h2>\n\n
S\u1ef1 n\u1edf th\u00e0nh c\u00f4ng<\/h2>\n\n
T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c \u1ea5p tr\u1ee9ng<\/h2>\n\n
Nh\u1eefng th\u00edch nghi \u0111\u1ed9c \u0111\u00e1o<\/h2>\n\n
S\u1ee9c b\u1ec1n v\u00e0 s\u1ef1 hy sinh<\/h2>\n\n
\u00dd ngh\u0129a khoa h\u1ecdc<\/h2>\n\n