Wolves show signs of self-cognition with innovative sniff test

Self-awareness has been a central theme in philosophical and biological research since ancient times. In the temple of Apollo at Delphi, the exhortation "Know yourself" is inscribed in Greek, an invitation to men to understand ...

Even low levels of artificial light disrupt ecosystems

A new collection of papers on artificial light at night show the impact of light pollution to be surprisingly far-reaching, with even low levels of artificial light disrupting species communities and entire ecosystems. Published ...

Physicists produce stable water-based graphene dispersions

Umeå researchers show how activated graphene, activated carbons and other hydrophobic carbons can be dispersed in water in a form of micrometer-sized particles. The key agent that helps to make these dispersions last for ...

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