Raven food calls disclose their age and sex

Common ravens (Corvus corax) use food associated 'haa' calls to recruit other individuals of the same species (conspecifics) to food foraging sites which may be dangerous because of predators or territorial breeding pairs. ...

Monitoring microbes to keep Marsonauts healthy

To guarantee a safe environment for astronauts on long-duration space missions such as a journey to Mars, it is important to monitor how microorganisms such as bacteria adapt to the confined conditions onboard spacecraft, ...

Stressed lemurs have worse chances of survival

High levels of hair cortisol—a sign of long-term stress—are associated with reduced survival in wild grey mouse lemurs (Microcebus murinus), according to a study published in the open access journal BMC Ecology.

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