Kittens' Development
| Age | Development |
| 1-7 days | Blind and helpless. Dependent on their mother. |
| 8-12 days | Eyes begin to open. |
| 16-20 days | Begin to crawl. Eyes open wide. |
| 21-25 days | First wobbly steps. |
| 3 weeks+ | Eat first solid food. Put a litter box next to their box. Distinguish sounds and come up to or run after their mother. |
| 4-5 weeks | Jump. Try to climb out of their box. Falling reflex developes (landing on feet). Hiss at strangers and flatten their ears back. Play. |
| 6 weeks+ | Wrestle. |
| 8 weeks | Complete set of milk teeth. Eat independently and are weaned by their mother. |
| 10-12 weeks | Siblings begin to fight with each other over territory and food. Adult life begins. |