{"id":1635,"date":"2025-10-04T19:21:05","date_gmt":"2025-10-04T19:21:05","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=1635"},"modified":"2025-10-04T19:21:05","modified_gmt":"2025-10-04T19:21:05","slug":"unveiling-the-secrets-of-baleen-whale-hearing","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/marine-biology\/unveiling-the-secrets-of-baleen-whale-hearing\/","title":{"rendered":"B\u00ed m\u1eadt th\u00ednh gi\u00e1c c\u1ee7a c\u00e1 voi t\u1ea5m s\u1eebng: Kh\u00e1m ph\u00e1 v\u0129 \u0111\u1ea1i c\u1ee7a khoa h\u1ecdc"},"content":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ti\u1ebft l\u1ed9 b\u00ed m\u1eadt v\u1ec1 th\u00ednh gi\u00e1c c\u1ee7a c\u00e1 voi t\u1ea5m s\u1eebng<\/h2>\n\n

B\u1ed1i c\u1ea3nh<\/h2>\n\n

C\u00e1 voi t\u1ea5m s\u1eebng, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi k\u00edch th\u01b0\u1edbc kh\u1ed5ng l\u1ed3 v\u00e0 c\u00e1c t\u1ea5m s\u1eebng \u0111\u1eb7c bi\u1ec7t, t\u1eeb l\u00e2u \u0111\u00e3 khi\u1ebfn c\u00e1c nh\u00e0 khoa h\u1ecdc say m\u00ea. Tuy nhi\u00ean, vi\u1ec7c hi\u1ec3u c\u00e1ch nh\u1eefng g\u00e3 kh\u1ed5ng l\u1ed3 hi\u1ec1n l\u00e0nh n\u00e0y nghe nh\u01b0 th\u1ebf n\u00e0o v\u1eabn c\u00f2n l\u00e0 m\u1ed9t b\u00ed \u1ea9n cho \u0111\u1ebfn t\u1eadn b\u00e2y gi\u1edd.<\/p>\n\n

M\u1eaft x\u00edch c\u00f2n thi\u1ebfu<\/h2>\n\n

Trong n\u1ed7 l\u1ef1c b\u1ea3o v\u1ec7 c\u00e1 voi kh\u1ecfi nh\u1eefng t\u1ed5n th\u01b0\u01a1ng th\u00ednh gi\u00e1c ti\u1ec1m \u1ea9n do \u00e2m thanh d\u01b0\u1edbi n\u01b0\u1edbc, c\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 v\u1eadn \u0111\u1ed9ng cho lu\u1eadt ph\u00e1p nh\u1eb1m h\u1ea1n ch\u1ebf ti\u1ebfng \u1ed3n t\u1ea7n s\u1ed1 th\u1ea5p \u1edf \u0111\u1ea1i d\u01b0\u01a1ng v\u00e0 v\u1ecbnh. Nh\u01b0ng n\u1ebfu kh\u00f4ng hi\u1ec3u r\u00f5 v\u1ec1 th\u00ednh gi\u00e1c c\u1ee7a c\u00e1 voi, nh\u1eefng n\u1ed7 l\u1ef1c c\u1ee7a h\u1ecd s\u1ebd b\u1ecb h\u1ea1n ch\u1ebf.<\/p>\n\n

M\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn h\u1ee3p t\u00e1c<\/h2>\n\n

Nh\u00e0 sinh h\u1ecdc bi\u1ec3n Ted W. Cranford v\u00e0 k\u1ef9 s\u01b0 k\u1ebft c\u1ea5u Petr Krysl \u0111\u00e3 b\u1eaft tay v\u00e0o m\u1ed9t s\u1ee9 m\u1ec7nh \u0111\u1ec3 kh\u00e1m ph\u00e1 b\u00ed \u1ea9n v\u1ec1 th\u00ednh gi\u00e1c c\u1ee7a c\u00e1 voi. H\u1ecd \u0111\u01b0a ra gi\u1ea3 thuy\u1ebft r\u1eb1ng c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu c\u1ee7a h\u1ed9p s\u1ecd c\u00e1 voi \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong qu\u00e1 tr\u00ecnh nh\u1eadn th\u1ee9c \u00e2m thanh.<\/p>\n\n

M\u00f4 h\u00ecnh m\u00e1y t\u00ednh<\/h2>\n\n

\u0110\u1ec3 ki\u1ec3m tra gi\u1ea3 thuy\u1ebft c\u1ee7a m\u00ecnh, Cranford v\u00e0 Krysl \u0111\u00e3 l\u1ea5y h\u1ed9p s\u1ecd c\u1ee7a m\u1ed9t con c\u00e1 voi v\u00e2y non b\u1ecb m\u1eafc c\u1ea1n v\u00e0 qu\u00e9t n\u00f3 b\u1eb1ng m\u00e1y qu\u00e9t ban \u0111\u1ea7u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ed9ng c\u01a1 t\u00ean l\u1eeda. D\u1eef li\u1ec7u qu\u00e9t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ea1o ra m\u1ed9t m\u00f4 h\u00ecnh m\u00e1y t\u00ednh chi ti\u1ebft, chia nh\u1ecf c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu c\u1ee7a h\u1ed9p s\u1ecd th\u00e0nh c\u00e1c kh\u1ed1i gi\u1ed1ng nh\u01b0 Lego v\u00e0 l\u1eadp b\u1ea3n \u0111\u1ed3 m\u1ed1i quan h\u1ec7 gi\u1eefa t\u1eebng y\u1ebfu t\u1ed1.<\/p>\n\n

S\u00f3ng \u00e2m \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng<\/h2>\n\n

B\u1eb1ng c\u00e1ch g\u1eedi s\u00f3ng \u00e2m qua h\u1ed9p s\u1ecd \u0111\u01b0\u1ee3c m\u00f4 ph\u1ecfng c\u1ee7a h\u1ecd, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 quan s\u00e1t c\u00e1ch t\u1eebng \u0111o\u1ea1n x\u01b0\u01a1ng rung \u0111\u1ed9ng. H\u1ecd ph\u00e1t hi\u1ec7n ra r\u1eb1ng h\u1ed9p s\u1ecd ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t v\u1eadt d\u1eabn \u00e2m, khu\u1ebfch \u0111\u1ea1i s\u00f3ng khi ch\u00fang ch\u1ea1m v\u00e0o h\u1ed9p s\u1ecd v\u00e0 truy\u1ec1n ch\u00fang \u0111\u1ebfn x\u01b0\u01a1ng tai.<\/p>\n\n

S\u1ee9c m\u1ea1nh c\u1ee7a si\u00eau m\u00e1y t\u00ednh<\/h2>\n\n

\u0110\u1ec3 x\u1eed l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 do c\u00e1c m\u00f4 ph\u1ecfng c\u1ee7a h\u1ecd t\u1ea1o ra, Cranford v\u00e0 Krysl \u0111\u00e3 s\u1eed d\u1ee5ng m\u1ed9t si\u00eau m\u00e1y t\u00ednh. H\u1ecd \u0111\u00e3 ch\u1ea1y c\u00e1c m\u00f4 ph\u1ecfng c\u1ee7a m\u00ecnh trong nhi\u1ec1u ng\u00e0y v\u00e0 th\u1eadm ch\u00ed nhi\u1ec1u tu\u1ea7n m\u1ed7i l\u1ea7n, cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn m\u1ed9t kh\u00e1m ph\u00e1 mang t\u00ednh \u0111\u1ed9t ph\u00e1.<\/p>\n\n

Kh\u00e1m ph\u00e1 v\u0129 \u0111\u1ea1i<\/h2>\n\n

Cranford \u0111\u00e3 g\u1ecdi kh\u00e1m ph\u00e1 c\u1ee7a h\u1ecd l\u00e0 “m\u1ed9t kh\u00e1m ph\u00e1 v\u0129 \u0111\u1ea1i”: h\u1ed9p s\u1ecd c\u1ee7a c\u00e1 voi c\u00f3 kh\u1ea3 n\u0103ng \u0111\u1eb7c bi\u1ec7t l\u00e0 d\u1eabn \u00e2m, t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 nh\u1ea1y th\u00ednh gi\u00e1c. Kh\u00e1m ph\u00e1 n\u00e0y \u0111\u00e3 cung c\u1ea5p m\u1ed9t ph\u1ea7n quan tr\u1ecdng c\u1ee7a c\u00e2u \u0111\u1ed1 \u0111\u1ec3 hi\u1ec3u c\u00e1ch c\u00e1 voi t\u1ea5m s\u1eebng giao ti\u1ebfp v\u00e0 nh\u1eadn bi\u1ebft m\u00f4i tr\u01b0\u1eddng c\u1ee7a ch\u00fang.<\/p>\n\n

C\u00e1c \u1ee9ng d\u1ee5ng ti\u1ec1m n\u0103ng<\/h2>\n\n

Nh\u1eefng ph\u00e1t hi\u1ec7n t\u1eeb nghi\u00ean c\u1ee9u c\u1ee7a Cranford v\u00e0 Krysl c\u00f3 \u00fd ngh\u0129a s\u00e2u r\u1ed9ng. Kh\u00e1m ph\u00e1 c\u1ee7a h\u1ecd c\u00f3 kh\u1ea3 n\u0103ng l\u00e0m s\u00e1ng t\u1ecf c\u01a1 ch\u1ebf th\u00ednh gi\u00e1c c\u1ee7a c\u00e1c lo\u00e0i c\u00e1 voi kh\u00e1c, bao g\u1ed3m c\u00e1 voi c\u00f3 r\u0103ng v\u00e0 c\u00e1 heo. Ngo\u00e0i ra, n\u00f3 c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 ph\u00e1t tri\u1ec3n c\u00e1c c\u00f4ng ngh\u1ec7 nh\u1eb1m gi\u1ea3m thi\u1ec3u \u00f4 nhi\u1ec5m ti\u1ebfng \u1ed3n d\u01b0\u1edbi n\u01b0\u1edbc v\u00e0 b\u1ea3o v\u1ec7 sinh v\u1eadt bi\u1ec3n.<\/p>\n\n

V\u1ebb \u0111\u1eb9p c\u1ee7a c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu<\/h2>\n\n

Cranford nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a nghi\u00ean c\u1ee9u c\u1ee7a h\u1ecd trong vi\u1ec7c l\u00e0m n\u1ed5i b\u1eadt thi\u1ebft k\u1ebf ch\u1ee9c n\u0103ng v\u00e0 th\u01b0\u1eddng kh\u00f4ng l\u01b0\u1eddng tr\u01b0\u1edbc \u0111\u01b0\u1ee3c c\u1ee7a c\u00e1c c\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu:<\/p>\n\n

“Nghi\u00ean c\u1ee9u n\u00e0y \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t nguy\u00ean l\u00fd \u0111\u1eb9p: C\u1ea5u tr\u00fac gi\u1ea3i ph\u1eabu kh\u00f4ng ph\u1ea3i l\u00e0 ng\u1eabu nhi\u00ean. N\u00f3 c\u00f3 ch\u1ee9c n\u0103ng v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf m\u1ed9t c\u00e1ch tuy\u1ec7t \u0111\u1eb9p theo nh\u1eefng c\u00e1ch kh\u00f4ng l\u01b0\u1eddng tr\u01b0\u1edbc \u0111\u01b0\u1ee3c.”<\/p>\n\n

Nghi\u00ean c\u1ee9u \u0111ang di\u1ec5n ra<\/h2>\n\n

C\u00f4ng tr\u00ecnh mang t\u00ednh \u0111\u1ed9t ph\u00e1 c\u1ee7a Cranford v\u00e0 Krysl \u0111\u00e3 m\u1edf ra nh\u1eefng h\u01b0\u1edbng nghi\u00ean c\u1ee9u m\u1edbi v\u1ec1 th\u00ednh gi\u00e1c v\u00e0 giao ti\u1ebfp c\u1ee7a c\u00e1 voi. H\u1ecd c\u00f3 k\u1ebf ho\u1ea1ch ti\u1ebfp t\u1ee5c c\u00e1c cu\u1ed9c \u0111i\u1ec1u tra c\u1ee7a m\u00ecnh \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem nh\u1eefng ph\u00e1t hi\u1ec7n c\u1ee7a h\u1ecd c\u00f3 \u00e1p d\u1ee5ng cho c\u00e1c lo\u00e0i c\u00e1 voi kh\u00e1c hay kh\u00f4ng. B\u1ea5t k\u1ec3 k\u1ebft qu\u1ea3 nh\u01b0 th\u1ebf n\u00e0o, nghi\u00ean c\u1ee9u c\u1ee7a h\u1ecd \u0111\u00e3 c\u00f3 \u0111\u00f3ng g\u00f3p \u0111\u00e1ng k\u1ec3 v\u00e0o s\u1ef1 hi\u1ec3u bi\u1ebft c\u1ee7a ch\u00fang ta v\u1ec1 nh\u1eefng sinh v\u1eadt b\u00ed \u1ea9n n\u00e0y.<\/p>","protected":false},"excerpt":{"rendered":"

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111\u00e3 ti\u1ebft l\u1ed9 b\u00ed m\u1eadt v\u1ec1 th\u00ednh gi\u00e1c c\u1ee7a c\u00e1 voi t\u1ea5m s\u1eebng B\u1ed1i c\u1ea3nh C\u00e1 voi t\u1ea5m s\u1eebng, \u0111\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi k\u00edch th\u01b0\u1edbc kh\u1ed5ng…<\/p>\n","protected":false},"author":2,"featured_media":25008,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[1603,613,361,3559,3560,3558],"class_list":["post-1635","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-marine-biology","tag-baleen-whales","tag-scientific-discovery","tag-marine-biology","tag-skull-anatomy","tag-sound-conduction","tag-whale-hearing"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/1635","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=1635"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/1635\/revisions"}],"predecessor-version":[{"id":25009,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/1635\/revisions\/25009"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/25008"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=1635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=1635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=1635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}