over a million.
Head lice
Lice feed on human blood. The lice's claws grasp the human hair firmly. When they feed, tiny hooks surrounding the mouth grasp the scalp. They feed several times per day and do not become engorged (Like ticks do, over time.)
5-10
slowly evaporates.
About 4 eggs are laid in one day by one female lice
Well adult lice are able to survive for like 2-3 days but eggs take process of 7 days till they become a head lice that is proper
well we don't no for sure how many soldiers had lice but what we do know is that most of the British and German soldiers suffered from serious cases of lice. sometimes the soldiers would spend their day picking of lice from their clothing and out from their hair this would be one of the highlights of their day! strange but true! as i said earlier we don't know how many soldiers actually had lice for sure.
The ancient Romans did have a sewer system, but it wasn't necessarily flushing. They simply had outhouses positioned over open sewer lines with running water in them. This effectively transported the waste away from the sewer, but I wouldn't call that flushing. 2800 years ago from this day, King Menos from Crete supposedly had a water closet that could flush.
A lice.
You would have a headache.
An adult head louse lays about 10 eggs (nits) per day, for about 4 weeks. So, she will have almost 300 baby lice by the time she dies.