Popular insect repellent deet affects nervous system: study

The active ingredient in many insect repellents, deet, has been found to be toxic to the central nervous system. Researchers writing in the open access journal BMC Biology say that more investigations are urgently needed ...

A 508-million-year-old sea predator with a 'jackknife' head

Paleontologists at the University of Toronto (U of T) and the Royal Ontario Museum (ROM) in Toronto have entirely revisited a tiny yet exceptionally fierce ancient sea creature called Habelia optata that has confounded scientists ...

Adelie penguin numbers may expand as glaciers retreat

Shrinking glaciers could lead to increasing numbers of Adélie penguins (Pygoscelis adeliae) in East Antarctica, according to research published in the open access journal, BMC Evolutionary Biology.

Ancient fossils confirmed among our strangest cousins

More than 100 years since they were first discovered, some of the world's most bizarre fossils have been identified as distant relatives of humans, thanks to the work of University of Adelaide researchers.

Study of giant viruses shakes up tree of life

A new study of giant viruses supports the idea that viruses are ancient living organisms and not inanimate molecular remnants run amok, as some scientists have argued. The study reshapes the universal family tree, adding ...

Ancient toothed turtles survived until 160m years ago

Today's turtles don't have teeth; they cut off their food using hard ridges on their jaws. But their ancestors were not so dentally challenged. A team of international researchers including Dr. Márton Rabi from the Biogeology ...

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