| Time of development | Change | Approximate size and weight |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| | Time of development | Change | Approximate size and weight |
| 1-4 weeks | |
| 1-4 weeks | |
| 1-4 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
| 5-8 weeks | |
|