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.
Quick Answer. A seal makes a sound that is a mixture of a bark and an eerie whaling sound, depending on the species of seal. Sea lions are known to bark whenever they come out of the water as they snort to clear their nostrils. The Weddell Seal has 34 different kinds of calls and can be heard for more than 15 miles underwater. Male seals use their sounds as a way to establish who will do the most mating in the group of seals, or harem. Males first create a low-frequency sound with a guttural noise. Then the males will sometimes engage in a bloody physical attack to determine who is dominant.