Egg, Hatchling, and child enlarged for viewing purposes.
Egg
When you first get your Bazzal it will be a very delicate little egg nestled in a leaf. It doesn't make noises or roll around, but it can lightly glow depending on its mood.

Hatchling
Your egg has hatched! Your bazzal is still very little (about the size of your thumb) Be careful not to step on it! It's very insect like at this point, and can't yet fly. Males will have a small horn starting to sprout out of their foreheads.

Child
Your bazzal will then reach it's child stage. It can now make a sort of meeping sound, and it's wings have developed. Males will have small horns that are still pretty soft. Also, it will start to lose two of it's legs as it evolves into a more mammel-like creature.

Teen
Congrats! You've now got a moody teenager to deal with! Bazzal teens tend to be very emotional and will try to rebel against anything and everything you do. They can now mindspeak a little, but there words sound fuzzy, often leading to misunderstandings. Males tend to develop slower than females, and their wings or for show only at this point. Females, however, can now fly around with expertise. Males' horns are now almost fully devloped. They are still hardening, which makes them grumpy and gives them bad head aches. Both genders have completely lost their extra legs by now.

Adult
Your bazzel has finally reached adulthood! It's paws have fully developed, and it's claws have grown in. Males can finally fly now, and their horns are as hard as rocks and as sharp as a sword. Females are still better flyers, and they have larger wings, but their claws aren't as sharp as the males.