This is the Happy Pod from the BBC World Service.

I'm Bernadette Keough, and in this edition...

It was just the best feeling ever.

Incredible moment where I don't think I'd go over for a long long time.

Our house is just

exploding with love. A tiny dog who found fame on a giant adventure finally makes it home.

A man who risked everything to save 41 people. The families of these young men who were trapped

couldn't help, but I could.

Putting your life on the line for other people, that's what we should do.

That's at the heart of what humanity is all about.

Also, hunting for an elusive rare species.

We're basically chasing ghosts.

We can't see it, we can't hear it, but we know it's there.

Christina can hear it.

Plus the joy of a footballing first for Senegal.

We start with the story of a tiny dog who went on a huge adventure.

Valerie, the Dashund, was just a puppy when she escaped during a camping trip on Kangaroo Island off the south coast of South Australia back in November 23.

Her owners feared she wouldn't survive on the large, sparsely populated island alone,

and for over a year her fate

remained unclear. Then, back in February, Valerie was spotted, and after more than 500 days

in the wilderness and a rescue operation involving a thousand hours of volunteers' time, she's

finally made it home

...