We tend to think of prehistoric life as hard. Brutal, even. Devoid of pleasure, outside of the odd mammoth steak or math class. But that dour picture tends to be missing something big – or rather, something small: kids. And, a recent study seems to suggest, they were having quite a bit of fun. The evidence: nearly 500 ceramic artifacts, found across five archaeological sites in Czechia, dating from around 30,000 years ago – and in many cases, they were created by children. How do we know? “[The] ceramics are smaller, more asymmetrical, and the result of simpler, shorter production sequences an…