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BBC Inside Science: Recovering lost memories, Storks eat junk food, Oldest pine fossil, Spring flowering

Recovering lost memories, Storks eat junk food, Oldest pine fossil, Spring flowering

17/03/2016

BBC Radio 4 - BBC Inside Science, Recovering lost memories, Storks eat junk food, Oldest pine fossil, Spring flowering

Lost memories can be recovered in mice. Are there implications for Alzheimer's patients?

New research shows that lost memories can be recovered in mice. Tracey Logan discusses any implications for people with Alzheimer's.

Research in Nature this week shows that lost memories in mice can be rescued by reactivating a group of memory cells in the brain called 'engram' cells. The team suggests that their research might prove useful for Alzheimer's patients in the future. Professor John Hardy, neuroscientist at University College London and Dr Prerana Shrestha from the Center for Neural Science at New York University discuss the work with Tracey.

The migrating white stork is well-known in folklore as the bringer of babies. In recent years, large numbers of them have decided to stop flying to Africa for winter, and live all year round, feasting on food from landfills in Portugal. Dr Aldina Franco from the University of East Anglia has been studying these birds and talks to Tracey about these adapting birds.

A scientist at Royal Holloway University in London has discovered the oldest-known fossil of a pine tree. Howard Falcon-Lang discovered the fossils in Nova Scotia, Canada, and brought some back to his office. 5 years later, he dissolved a sample of what looked like charcoal in acid and discovered charred pine twigs. These date back 140 million years to a time when fires raged across large tracts of land. Reporter Roland Pease visits his lab to look at the samples close up. The research suggests the tree's evolution was shaped in the fiery landscape of the Cretaceous, where oxygen levels were much higher than today, fuelling intense and frequent wildfires. 

UK Gardeners may have noticed summer flowers blooming at unusual times this winter. Tracey meets up with seed scientist Steve Penfield and crop geneticist Judith Irwin in a greenhouse at the John Innes Centre. They explain how seeds and flowering times are affected temperature changes.

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