Blackbirds found to rest earlier at dusk when sick

A trio of biologists at Lund University in Sweden has found that blackbirds that feel ill tend to rest earlier at dusk than control birds. In their study, reported in the Proceedings of the Royal Society B, Rosie Lennon, ...

Scientists discover how trilobites survived environmental change

Scientists have worked out how one unusual species of trilobite—an ancient, sea-dwelling relative of spiders and lobsters—was able to defend itself against predators and survive a bumpy ride as Earth's oxygen levels fluctuated.

New insights into the evolution of the plague pathogen

The origins of the plague go back to the Neolithic Age, with the oldest findings of the causative pathogen Yersinia pestis coming from human bones around 5,000 years old. In the history of the plague, the late antique Justinianic ...

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