Transcript for Instant Index: Mums the Word: Prince William Heeds His Grandma's Suggestion and Flies Coach
Our instant did that tonight begins with the best place on earth to be a mom tonight according to a survey from save the children number one Finland. And Norway Sweden right there it's all based on available education for kids economic support and the risks mothers and children. At the bottom of this list Somalia and the Democratic Republic of Congo where it's more dangerous to be a mother and to be an armed fighter. And by the way the US ranks 31 out of 178. Countries tumbling from six -- just eight years ago. She and a big surprise for some folks on an American Airlines flight from Memphis over the weekend this pictures surfaced showing none other than Prince William. -- -- -- -- That's the back of his head and a window seat. He's making his way back to London after a friend's wedding and reported his grandmother asked that on personal trips all royals pay for their own travel. And avoid displays of -- traffic -- us. And today a Lion King moment at the national zoo in Washington DC watched the all important swim test for the lion cubs. 1234. -- went into the water paddled around scrambled out. Into the arms of human parents would really warm blankets. All four of them passed with flying colors which means they just need their vaccinations. And then they'll join their Brothers and sisters and -- -- to work exit.
This transcript has been automatically generated and may not be 100% accurate.