churn in Business English. churnnoun [ U ] Preventing customer churn is a major concern for mobile service providers, since 20-40% of customers leave their providers in a given year. Employee churn for new hires increased by 33% for the third straight year.
For 18 months, the baby nurses while its mother is on land, or it swims underwater to suckle. When it dives, the calf closes its nose and ears to block out water. All hippos have this ability. They also have membranes that cover and protect their eyes while they are underwater.
During the winter, otters can breathe in the space between the bottom of the ice and the lowering water. Did you know that otters can dive deeper than 50 feet underwater? Otters can dive as far down as 55 feet! They can also swim a 1/4 mile with only 1 breath and can stay underwater for 2 minutes.