Pescoço da girafa não evoluiu para pegar folhas, mas por fêmeas

[{"selector":"#anim-622ae0d5-2eaf-47af-8ddd-3ed88cbdb0f3 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] TÁTICA CORPORAL WANG Yu and GUO Xiaocong Pescoço da girafa não evoluiu para pegar folhas, mas para disputa por fêmeas, diz estudo

[{"selector":"#anim-6e5edeed-6ca8-4a41-818b-fab9b7b401af","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8df04f44-22fd-4008-8396-30838724cd25","keyframes":{"transform":["translate3d(0px, -559.67423%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-68bcd33e-f69c-40f0-b658-9973b510a648 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-7.105427357601002e-15%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Um estranho parente primitivo da girafa, que viveu há 17 milhões de anos, evoluiu perfeitamente para ter uma cabeça forte que se assemelha a um capacete Pexels/Pixabay

[{"selector":"#anim-fa43c2fe-1892-4fea-8f16-e6103dcc3481","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8df002ac-e1e1-436c-a5bb-d68b9bd5b04c","keyframes":{"transform":["translate3d(-105.97015%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-20ce34c0-8c27-4e35-96e0-57ac030ef371","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-47bee087-ad73-4801-a107-36ea72ca0cfa","keyframes":{"transform":["translate3d(-97.33334%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-99191a9b-e2ca-4381-b556-5d11e6c78e14","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f6d825cc-ae66-455e-8b16-5b46f19f340e","keyframes":{"transform":["translate3d(-18549.88258%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f4ef6eb4-6d1e-4ccb-8878-7054071638ad [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(10.75581371535617%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] A girafa excêntrica não tinha o pescoço longo da girafa de hoje. Em vez disso, o animal antigo, adaptado para lutas ferozes, usava proteção semelhante a capacetes e tinha as articulações cabeça-pescoço mais complexas já vistas em um mamífero Giphy

[{"selector":"#anim-3d044699-5c64-4abb-a85e-5b30d027b683","keyframes":{"transform":["translate3d(108.52274%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1044,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-9a26857f-f5c2-4dd0-a938-71b124ec1bfd","keyframes":[{"transform":"rotateZ(180deg)"},{"transform":"rotateZ(0deg)"}],"delay":0,"duration":1200,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-3aaf8517-2865-4f30-bfc8-966e32b3c09b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(-7.105427357601002e-15%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Pesquisadores apelidaram essa criatura de Discokeryx xiezhi. Nas lendas chinesas, xiezhi é uma criatura mítica de um chifre que se assemelha a uma cabra WANG Yu and GUO Xiaocong

[{"selector":"#anim-cf51fe4b-a015-4d02-bee2-bbc5ce2b1c92","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-6f094199-8321-41a0-a9ee-64e276519650","keyframes":{"transform":["translate3d(0px, 480.01876%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d421eaf3-d65c-4548-8cda-6af9394409da [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-21.874999829338588%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] O fóssil deste animal foi encontrado pela primeira vez na bacia de Junggar, no noroeste da China, em 1996 WANG Yu and GUO Xiaocong

[{"selector":"#anim-9e089cb6-7ce8-43a4-a633-6e336db6212a","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f28a68ea-19e3-4558-b862-c45a854d4a33","keyframes":{"transform":["translate3d(0px, 140.71483%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a5296bb8-0398-4c37-b715-e470a53274e3 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(6.249999829338593%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] No entanto, foi apenas nos últimos três anos que os pesquisadores perceberam que esse estranho fóssil pertencia a um girafídeo - o que ajuda a entender a evolução das girafas Giphy

[{"selector":"#anim-c900f20a-0740-4f83-87a8-af31de3451a4","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f6b61361-aa15-4d71-b2fa-68c4683b8e7c","keyframes":{"transform":["translate3d(116.38418%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-fc74e88d-955c-433f-a48f-255feea434a7 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Acreditavam que a girafa havia desenvolvido pescoços longos para alcançar folhagens altas, mas com essa última descoberta, um outro propósito ficou nítido para os pesquisadores Pexels/Todd Trapani

[{"selector":"#anim-6b08560a-8618-407a-923c-67b284a69188","keyframes":{"opacity":[0,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-be00049a-8a1e-4eae-805d-6a5568093794","keyframes":{"transform":["translate3d(99.52267%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5330b037-c8f1-49f9-83a8-902cf968ef00 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(32.30594744962122%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Quando girafas machos competem pelas fêmeas, usam o pescoço para lutar. Quanto mais longo o pescoço, maior a chance de causar danos graves Giphy

[{"selector":"#anim-6ef66d05-3903-46d8-8b34-6f3f1634308c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f52bc346-cd50-42bf-9dbc-44fc6427c403","keyframes":{"transform":["translate3d(-104.67837%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9638707c-79b3-481f-a504-51d2273b9041","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d738d640-5c18-4099-a24b-d8b5f10ca3f3","keyframes":{"transform":["translate3d(-98.91599%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c0f1da3d-a134-4d0b-aca5-6b32bd32e142","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-a6771daf-3105-4d75-9c28-73629919536d","keyframes":{"transform":["translate3d(-18649.88052%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-efcffba9-b3bc-49da-b651-63016c03521e [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-25.39062482933859%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] De certa forma, o animal provavelmente evoluiu de uma cabeça forte para um pescoço longo por uma estratégia de luta corporal - uma evolução que também conversava com a necessidade de alcançar folhagens altas Pexels/Frans Van Heerden

[{"selector":"#anim-7368f3c5-bdda-4c37-a8e2-d01e9178e5ae","keyframes":{"transform":["translate3d(-125.18248%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1392,"easing":"cubic-bezier(.2, 0, .8, 1)","fill":"both"}] [{"selector":"#anim-4d027101-249e-49a8-bc75-6fa3152a7937","keyframes":[{"transform":"rotateZ(-180deg)"},{"transform":"rotateZ(0deg)"}],"delay":0,"duration":1600,"easing":"cubic-bezier(.2, 0, .5, 1)","fill":"forwards"}] [{"selector":"#anim-5b114478-ad69-47f6-aae9-9cf5ded2f950 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate(0%, 0%) scale(1.5)","translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] Giphy Leia mais no site da CNN Brasil Arraste para cima