With all of this week's wild weather in the U.S., we're listing some of the factors that make springtime so volatile. With all of the green on display today, you might be surprised to learn about the original color associated with St. Patrick's Day. (You'll also want to see the vibrant shades of tulips as the Netherlands promotes its flower trade with Germany.) Our history topics include a vote to end apartheid in South Africa. And we're detailing how researchers in the Caribbean are using a gentler method of tagging whales. All of this, plus a knuckle-hopping world record, are on today's show!