Add a simple consonant sound to those and you get words like Mama, Papa, Dada and baba, words that are used for parents and caregivers in languages all over the world.
Everett suggests that the sounds are more popular at altitude because lower air pressure may make it easier to produce the burst of air that is a key characteristic of ejective consonants.
All right, so now that we know what connecting words are and that we know the difference between vowels and consonants, let's see how all this stuff actually works.
But about as many parental words lack these common sounds; in some languages the word for " mother" features rare consonants that children master only later.
His best touch is sclerosis, which he has added every conceivable consonant to creating a good , intimidating German physiiology-textbook solidity. So today he does much better.