Known as fontanelles, these soft spots exist so that the head can pass through the birth canal easier. (babygaga.com)
In 1989, a study paper written by Greene and Braund stated that there is no increased risk of hydrocephalus when a molera is present on the Chihuahua's head: «Many clinically normal toy breeds and brachycephalic (short faced) breeds also may have open fontanelles without associated hydrocephalus.» (breedingbusiness.com)
The researchers attached a 40 - gram ultrasonic probe to the anterior fontanelles of six healthy babies. (sciencemag.org)