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Scientists in the United States claim to have used genetic engineering and ancient preserved DNA to bring back the dire wolf,
an animal that went extinct more than 10,000 years ago.
I'm William Lee Adams.
And on What In The World, we're looking at the dire wolf and asking why scientists want to bring them back.
What In The World is a daily podcast from the BBC World Service.
We go in depth on a different topic every weekday in under 15 minutes.
Listen wherever you get your BBC podcasts.
Hello and welcome to news from the BBC World Service committee live from our studios in central London.
I'm Julian Marshall.
After famously pledging during his election campaign that he could end the war in Ukraine in 24 hours,
Donald Trump nearly four months into his term will have discovered
that this is one obstacle that he cannot overcome with an executive presidential order.
A flurry of diplomatic activity last month resulted in Ukraine and Russia agreeing to a 30 day ceasefire.
But with Russia demanding such impossible conditions, it never happened.
Since when it's all gone quiet apart from the signs of growing US impatience with Russia's foot dragging.
And only today,
President Trump said
that Russia needs to get moving and is reported to be considering further sanctions unless Russia agrees to a ceasefire by the end of this month.
So what if anything will come of a meeting today,