Recent Posts by Joseph

When confronted, a single neuron helps a fruit fly change course

In the fruit fly, a single pair of brain neurons command backward locomotion in both larvae and adults, researchers report.

The mapping of descending circuitry that can smoothly and rapidly switch movement from forward to backward is unprecedented, said Chris Doe, a biology professor and co-director of the University of Oregon's Institute of Neuroscience. He was...

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Study of bird migration tricky due to hybridization

Hybridization, the inter-breeding of bird species, is a widespread phenomenon, which is best illustrated in Estonia by the lesser spotted eagle and the greater spotted eagle. However, due to the fact that the migration strategies of both bird species are completely different, studying their offspring, or hybrids, helps ornithologists discover a lot about their migration...

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Enigmatic African fossils rewrite story of when lemurs got to Madagascar

Discovered more than half a century ago in Kenya and sitting in museum storage ever since, the roughly 20-million-year-old fossil Propotto leakeyi was long classified as a fruit bat.

Now, it's helping researchers rethink the early evolution of lemurs, distant primate cousins of humans that today are only found on the island of Madagascar, some 250...

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A common ancestral gene causes body segmentation in spiders and insects

Scientists have pinpointed a key gene that controls segmentation during spider development, which reveals a further similarity to the control of segmentation in insects, a study in eLife reports.

The research suggests the Sox gene was duplicated in the spider and then may have replaced the function of another related Sox gene that is still used...

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