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Welcome to the Science Podcast for May 15, 2015.

I'm Suzanne Bard filling in for Sarah Crespi.

In this week's show, we have David Grimm up first with some online news stories,

and then we hear from Richard Stone about science in Cuba.

Support for the science podcast is provided by AAAAS,

the American Association for the Advancement of Science,

advancing science, engineering, and innovation throughout the world for the benefit of all people.

AAAS, the Science Society.

Now we have David Grimm, editor for our daily news site.

He's here to talk about some recent online stories.

I'm Suzanne Bard.

Just how much would you be willing to sacrifice

for chocolate? Our first story will test whether you have the empathy level of a rat. A new

study tested whether rats would choose between chocolate and saving a drowning companion.

What was this all about, Dave?

Well, you know, this is all about Suzanne to test this idea whether animals besides humans feel empathy.

...