Pinkfong was founded in 2010 as SmartStudy, and was a firm that made digital content for children up to 12 years of age.

Shares in the firm behind the highly-addictive children's song rose by more than 9% in their stock market debut.

Sharks are often misunderstood, but for divers, they’re among the most compelling creatures to encounter. These animals are ancient, finely tuned, and nothing like their Hollywood image. Around the ...