That pretty much never changes!Over time, you'll learn to recognize which animals glow and which animals glitter (to you - it's a personal thing). You'll make projects out of the ones that glow and appreciate the ones that glitter. In the beginning, everything seems to glitter which is why it's easy to get overwhelmed. For the ones that glow, though, they're the ones that you're still thinking about days, weeks, months, and even years after you see them (and can remember what you were doing when you first saw them in some instances).