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	Podcast:		Science in Action
	Episode:		Tracing the Novichok Trail
	Category:		Religion & Spirituality
	Duration:		00:26:55
	Publish Date:		2018-04-05 15:00:00
	Description:		How are scientists looking for the trail of the novichok nerve agent used in the Salisbury attacks? Roland Pease speaks to Steven Drielak a “hotzone” forensics expert, who explains the techniques he would use when investigating environmental chemical crimes. Mircroplastics on land and in rivers Much has been covered about microplastics in our oceans, but now Professor Chelsea Rochman from the University of Toronto reviews the evidence for their presence in freshwater and in soil. Whalesong under the ice We hear the song of the elusive bowhead whale, whose repertoire is far greater than other whale species studied so far. Their musical calls may even be as varied as those of songbirds, making them unique among whale populations and even mammals. Bees, forests and paternity tests How far do tiny bees travel to carry pollen from one plant to another? Professor Shalene Jha has been doing floral paternity tests in Panama to find out. Picture: Investigators in hazmat suits at Salisbury Photo: Matt Cardy, Getty Images Presenter: Roland Pease Producer: Ania Lichtarowicz
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