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.
Kittens are born with sealed ear canals that remain shut for about two and a half weeks, or roughly 17 days, according to Dr. Dawn Ruben, a veterinarian and professor at Johns Hopkins University. Once this barrier opens up, your cute fuzzy critters will start to hear.