This is the Global News podcast from the BBC World Service.

I'm Jackie Leonard, and at 13 hours GMT on Friday the 25th of April, these are our main stories.

Russian officials have confirmed that one of the Kremlin's senior generals has been killed in a car bomb attack in a Moscow suburb.

The US envoy, Steve Whitkoff, has arrived in Moscow

for talks with President Putin on how to end the war in Ukraine, and aid workers in Sudan

say people are dying of thirst and starvation after huge numbers were forced to flee the country's

largest displacement camp.

Also in this podcast, how a rare and remarkable caterpillar in Hawaii camouflages itself with bones and body parts.

The spider thinks that they're part of a past meal

were actually part of its own shed skin.

And if they stopped doing that,

I think they would be removed from the gene pool pretty quickly.

As we record this podcast, the U.S. envoy Steve Whitkoff is holding talks in Moscow with President

Putin on how to end the war in Ukraine. Donald Trump has claimed that the two sides are

close to reaching a deal, but this is thought to

require Ukraine giving up large areas of territory. More on that in a moment. First, though,

a senior Russian general has been killed in an explosion near his home in Moscow. The Russia

editor for BBC monitoring is Vitaly Shevchenko. General Yoroslav Moskalik is a pretty senior figure.

Back in 2015, he was involved in talks with Ukraine held in Paris. This morning, he was killed by

a car bomb in an eastern suburb of Moscow.

Ukraine never really accepts any involvement in such attacks,

but a lot of fingers are pointing in its direction.

...