Um embrião de peixe-zebra. (Dr. Deodatta Gajbhiye) Os embriões de peixes de muitas espécies podem controlar o momento da eclosão, selecionando efetivamente os seus próprios aniversários. Um estudo da Universidade Hebraica de Jerusalém revelou os processos químicos e biológicos que permitem este controlo preciso, mostrando como os embriões alinham a sua eclosão com as condições...
Os marlins e os veleiros são grandes predadores no mar e estão entre os nadadores mais rápidos. Por vezes, caçam em grupos, revezando-se para apanhar sardinhas de um grupo. Agora, cientistas que utilizam nova tecnologia de drones descobriram algo interessante sobre a forma como coordenam os ataques sem se magoarem uns aos outros. Tem...
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