BUSINESS >Turkeyâs Top 500 companies announced. Turkish oil refiner TÃ¼praÅ, which posted over 40 billion liras in sales. Turkish oil refiner TÃ¼praÅ, the majority stake in which is owned by Turkish conglomerate KoÃ§ Holding, has again topped the list of the Top 500 Turkish companies for 2012, the Istanbul Chamber of Industry (Ä°SO) announced today.
When submerged underwater, hippos can hold their breath for 5 minutes or even longer if needed. Hippos have nostrils located on the top of their heads, which allows them to breathe even if the rest of their body is under water.
An adult hippo can hold its breath underwater for up to 30 minutes. When agitated, a hippo can charge at up to 14 miles per hour (30 kilometers per hour) on land. Hippos can store two days' worth of grass in their stomachs and can go up to three weeks without eating.