Bebês foca compartilham habilidade vocal rara com humanos, diz estudo

MISTÉRIO DA FALA

[{"selector":"#anim-2738b379-6d95-4585-93f6-a9cd98293994","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6febb534-00ba-418d-b918-a8ccd801649a","keyframes":{"transform":["translate3d(-112.92135%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-233b7702-5d0f-49f6-8446-9aca5f9ad823","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-759bec25-5f05-4014-80c7-6d6d23ce69e2","keyframes":{"transform":["translate3d(-212.19509%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-80124d74-8a2c-4d8d-935a-1e7c71a17ca2","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-76731c15-0b2d-469f-a2b0-31eca46ee688","keyframes":{"transform":["translate3d(0px, 234.55093%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-77dec8c9-a3c3-491d-97f5-9409d2c6bf9f [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(45.24177128755485%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Bebês foca compartilham habilidade vocal rara com humanos, diz estudo Imagem ilustrativa / John O' Connor / Reprodução / CNN

[{"selector":"#anim-febd8209-419a-40ff-b137-088766195846","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f9e33ae4-598f-4da9-9e6b-25f97559ad6a","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1c954861-d510-4924-9f62-cb890eb3bed3","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8868fdeb-5e9e-44a4-8a5e-0d1c4f7e378b","keyframes":{"transform":["translate3d(-115.93221%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-28e725cd-eeb1-473d-8703-ca70652bba36 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 2.684938717610128e-7%) scale(0.8849557522123894)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Um estudo publicado na revista científica britânica Philosophical Transactions of the Royal Society descobriu que filhotes de foca podem mudar o tom de voz para ser melhor compreendidos, assim como os humanos fazem Imagem ilustrativa / John O' Connor / Reprodução / CNN

[{"selector":"#anim-e59994a3-89c9-4f9b-a651-8f7b980a69fd","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-88480ba9-7ffb-4001-8c9c-817895ecea55","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1f152687-90a2-42f4-af51-a95fc8ffb4b3","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-cce189b0-b786-418b-8dd1-f3ffff6834af","keyframes":{"transform":["translate3d(-116.90648%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-88882441-ed22-4998-9e41-7daa67e31e4a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(17.401072490369693%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Dentre as razões que levaram os pesquisadores a querer testar as cordas vocais desses animais estão a rara habilidade que eles têm de imitar novos sons e a sua proximidade dos humanos em termos de desenvolvimento evolutivo Imagem ilustrativa / John O' Connor / Reprodução / CNN

[{"selector":"#anim-effb85e8-de12-4051-a4cd-50a5b02369b7","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a9f705f2-1ff2-4c27-9cd4-09602d442a73","keyframes":{"transform":["translate3d(-135.12397%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-010e318a-a70c-46fe-8c22-be03eaf56044","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ce68c886-ea29-4e60-b47e-ff6f15b1d735","keyframes":{"transform":["translate3d(0px, -276.03175%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7ecd7e87-98ed-4e45-a0f9-bcac1fd734cd","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-644c1e7a-8f66-421a-aebe-427bfbc465a8","keyframes":{"transform":["translate3d(0px, 365.70035%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Olhando para um dos poucos outros [animais] capazes de aprender sons, podemos entender melhor como nós, humanos, adquirimos a fala Andrea Ravignani, pesquisadora sênior do estudo

[{"selector":"#anim-e49c856f-f573-45d3-babe-8e8c35e46e26","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-665b25ef-87cb-4e42-bf55-12439e1c1060","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e87dbc02-947f-4e93-af6e-7fca60fceb93","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-37073af9-84d4-4d14-be6b-293bfae02adf","keyframes":{"transform":["translate3d(-117.26619%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-012f40dd-1bd6-4ae9-815c-e99cc1876572 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(28.90624987200394%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Depois de gravar ruídos ambientes no Mar de Wadden, entre Dinamarca, Alemanha e Holanda, os pesquisadores usaram um software para colocar o áudio a uma frequência que se sobreporia à faixa de comunicação entre focas mães e seus bebês Imagem ilustrativa / Ollicze / Wikimedia Commons

[{"selector":"#anim-02e6f26d-8146-4c52-9349-95f447698e12","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b15e1553-b53b-4dea-bc09-5e6d5df42c30","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-84537026-64af-4b75-a1ee-575240494df6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-64935795-048e-4d0f-9dda-4e7db529a10b","keyframes":{"transform":["translate3d(-117.26619%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f43a6f66-f20f-496d-8a7e-f25b0b50d6d6 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(65.6920300403963%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Para avaliar o desenvolvimento vocal desses mamíferos, o foco do estudo foram oito focas selvagens, saudáveis ​​e sem parentesco entre si, com uma a três semanas de vida, no Centro de Pesquisa e Reabilitação de Focas na Holanda Imagem ilustrativa / John O' Connor / Reprodução / CNN

[{"selector":"#anim-4bc84d88-7ce9-4a7c-92e6-63f67362ad23","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9c79c72e-79ab-48fc-95bc-ea702d85c0e7","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-15c22571-d8b3-4ed2-9ce5-055517431270","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-524f5aec-d2cb-41ff-aaed-bd4a31f88433","keyframes":{"transform":["translate3d(-115.87838%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-39faafdf-1360-4b64-a08e-235239e4566d [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-1.985091373771086%, 10.629920782050306%) scale(0.7874015748031497)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Expondo os animais aos ruídos gravados, e variando a intensidade desses ruídos, os autores observaram nos filhotes o chamado efeito Lombard, um comportamento típico da fala humana, quando as pessoas falam mais alto para ser melhor compreendidas Max Anderson / Unsplash

[{"selector":"#anim-26c02238-8c54-4e24-a0f7-bc67861e05d3","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e0ca1817-03f1-410e-8bc7-957954923dca","keyframes":{"transform":["translate3d(-135.12397%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-53c5db88-9289-4834-9e9a-bf34bc146673","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-279b225a-081f-45f7-8da0-abdee2dc5a7e","keyframes":{"transform":["translate3d(0px, -276.03175%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c094a84f-b8d2-4c58-b4a2-91384873b9da","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bd7f1e71-df18-428e-a711-117a96acd153","keyframes":{"transform":["translate3d(0px, 365.70035%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Os filhotes de focas têm um controle mais avançado sobre suas vocalizações do que se supunha até agora [...] Isso é surpreendente, pois poucos outros mamíferos são capazes disso Andrea Ravignani, pesquisadora sênior do estudo

[{"selector":"#anim-2eda91db-469d-47e9-a72e-ae6c24ba89f9","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b18d491f-6034-4c0e-95b7-7c129cc3e78c","keyframes":{"transform":["translate3d(-100%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6590ac9b-d563-4b61-8b36-b4d13c5cb074","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-21327219-6e35-4b20-a807-2c302f857fc5","keyframes":{"transform":["translate3d(-116.90648%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-572dc9e1-4db5-4964-aa6b-7acc69a988c5 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 9.557702765570578%) scale(1.390625)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Anteriormente, pensava-se que os humanos eram os únicos mamíferos com conexões neurais diretas entre o córtex – a camada externa do cérebro – e a laringe, que usamos para produzir o tom vocal, acrescentou Xia Yang / Unsplash

[{"selector":"#anim-0af3d13a-32b9-41da-b3b6-c4f7e197e2b5","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-68723191-ab58-4e62-bb8c-9ec6fdebb441","keyframes":{"transform":["translate3d(-135.12397%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-15cbdba9-c685-4c38-a8ce-b8e7d19c1c88","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1a64c832-f3e1-4484-a849-f8e8bbfbfccb","keyframes":{"transform":["translate3d(0px, -276.03175%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2977a5d1-b642-4cd8-92ff-be35a2881217","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-2400d72b-7276-481e-bcea-0d793d9fd4df","keyframes":{"transform":["translate3d(0px, 365.70035%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] Esses resultados mostram que as focas podem ser as espécies mais promissoras para encontrar essas conexões diretas e desvendar o mistério da fala Andrea Ravignani, pesquisadora sênior do estudo

MISTÉRIO DA FALA

Leia mais no site da CNN Brasil