I have also heard that since body lice actually live in clothing we can use their point of divergence from head lice to estimate when humans started wearing clothes.
(About 100,000 years ago according to the study I saw).
Similarly, the divergence between head and pubic lice gives us an idea of when our hair density became low enough that those populations became isolated. (Apparently a man is an island (or two), from the point of view of a louse.)
I read a similar study that attributed that divergence either to clothing or to losing the body hair, so that the populations in the head and the genitals became separated. They speculated that losing body hair and clothing could be correlated.
There is no way to know until somebody comes up with a clever idea to find out, and then we know. That is one aspect about those stories I like.
ETA: Hey! Cool ninja!
Yeah, that’s what I was thinking of with the Anole example - to a louse, the correct sort of animal is like an island in a barren ocean. It’s the only place they can survive for long.
Reading about the painting Washington Crossing the Delaware, I discovered that the original was destroyed in 1942 by the British in a bombing raid of Bremen, Germany where it had been part of the Kunsthalle Bremen collection since the 1850s.
This week on NPR, there was a story about the Honey Guide, a bird which, when called in the freaking wild, will lead the caller to a beehive full of honey. Caller walks into the forest, makes the call, bird appears, noisily flutters through the trees and, when close to the tree with the hive, perches and shuts up, awaiting a taste of honeycomb once the humans have subdued the bees.
And that wasn’t even the point of the story. It was ostensibly about a study regarding the different calls employed by different people in different places, and whether the birds would answer non-native calls.
Nor in Spanish. For “I have no siblings” you could either say “no tengo hermanos” which feels like excluding sisters or “no tengo ni hermanos ni hermanas” which sounds over-precise and pedantic.