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Em 2021: 2 notícias
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Environmental DNA sequencing will enable scientists to explore Amazon piscine diversity without catching fish
Publicado em 23 novembro 2021
A view of the river where environmental DNA was collected for comparison with captured specimens. The researchers aim to deposit in public databases sequences of genetic material representing all orders and families and most genera of Amazonian fish. Credit: David de Santana
A scientific expedition in the Javari River basin on the border between Brazil, Colombia and Peru has shown use of environmental DNA sequencing to be feasible to investigate fish diversity in the Amazon. The eDNA method [...]
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Life experience shapes dogs' interaction with humans
Publicado em 16 novembro 2021It’s an everyday scene. Pooch wants a tasty-looking piece of cake that’s sitting on the table. What does he do? He gazes longingly at the titbit, ogles his master or mistress, and glances back at the cake. This “conversation” with humans gets him what he wants. Communication between dogs and humans involving an exchange of looks is very common, but different life experiences can change it, according to a study conducted at the University of São Paulo (USP) in [...]ver notícia