Infants are born with soft spots in their skull made out of cartilage. What do you think happens to soft spots over time?

The posterior fontanelle usually closes by age 1 or 2 months. It may already be closed at birth. The anterior fontanelle usually closes sometime between 9 months and 18 months. The sutures and fontanelles are needed for the infant's brain growth and development

Eventually, the bones in your baby's skull will build up enough minerals to completely fuse together, and those gaps will close. You may not have even noticed the smaller back fontanelle, which typically closes by the time a baby is around 3 months old, but is sometimes closed at birth.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.