An actual 6 year-old asked me the question today. I was at a loss.
**Edit**: a lot of interesting answers, food for thought, and ideas on how to explain it to a child. Many thanks to the community!
If I summarize:
* Dinosaurs lived for a very (very) long time, all over the earth, and there were countless different species of them.
* There were few of our ancestors, from just a few species, and most of their existence was confined to limited geographical areas.
* The conditions for a fossil to form are extremely rare, and they may have been even rarer for our ancestors than they were for dinosaurs.
In: 819
Lack of time spend around, less individuals of each species mainly. Like dinosaur is the name for literally thousands of species over tens of millions of years, to do the comparison you’d have to compare it 1 to 1 with any one dinosaur species. The odds of a Skeleton being fossilised and surviving is pretty small, there was just lots of dinosaurs over a long long time that inevitably some survived
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