I got to thinking about how stars in globular clusters are similar to stars in the nucleus of our galaxy, both made mostly of population II stars. I also got to thinking about what gave globular clusters their eccentric orbits that exist outside the plane of our galaxy. What if globular clusters are the remaining galactic nuclei of smaller dwarf galaxies that have gravitationally interacted with and have been absorbed into our bigger galaxy. That would explain why globular clusters have similar stars to the nucleus of our galaxy, since the clusters were once galactic nuclei themselves. It would also explain why they orbit outside our galaxy's plane like they do. More massive galaxies have more globular clusters, perhaps because the bigger the galaxy, the more gravity it has and the greater number of smaller galaxies it can interact with and capture.