After two weeks of solitary birding in Weymouth I left the scope at home and went for a walk with Mrs D and dog round Weymouth. We took a route that fortuitously went past the Nothe Fort. The rocks along the shore are a traditional site for Black Redstart so it wasn't a big surprise to see a jet-black ball of fluff on a rock. We took some time to enjoy a male in his glory flitting around the rocks. Always a highlight to see one of these. But that was it birding wise, so ....
My last blog took a journey down global warming. This one may also take a journey but probably a look at evolution of birds and people. I'm not sure where yet.
But we can start with Humans and ants. For those who haven't seen it, the series Human presented by Ella Al-Shamahi is excellent. There are lots of hominid remains going back hundreds of thousands of years being found all over the world, including hominid foot-prints found fleetingly on Happisburgh beach. But none of these have direct human descendants. Current analysis from the Y-chromosome indicates an origin of all humans alive today about 250,000 years ago in Africa.
A visiting space alien popping in every ten thousand years and reporting back on their student project would have an interesting set of reports. The first 15 reports would consist of a social ape wandering around Africa. The next four reports would note ultimately unsuccessful efforts to leave Africa. Then a series of reports would show homo sapiens working their way round the coastal stretches of the pacific and Indian oceans, then a report noting about maybe 10 million humans maximum with some primitive signs of buildings, language, maybe some writing, then the next report has a population of 8 billion who have split the atom and gone to the moon.
Something seems very odd about this. If we take ants, they have complex social behaviours, live in cities, have social roles etc. There's an excellent essay on ants here written partly by my smarter brother. My guess is that ants behaved like this pretty much out of the evolutionary box, with their societal and role developments being a result of evolutionary pressures, and if we returned in one hundred thousand years they would be pretty much the same. They wouldn't have gone to the moon. Most creatures have their form and behaviour developed as a result of evolutionary forces and don't seem to change much when they find their niche. We humans don't.
The ant article quotes an interesting aspect of human evolution evidenced by Cortez meeting the Aztecs in Mexico.
"What took place in the early 1500s was truly exceptional, something that had never happened before and never will again. Two cultural experiments, running in isolation for 15,000 years or more, at last came face to face. Amazingly, after all that time, each could recognize the other’s institutions. When Cortés landed in Mexico he found roads, canals, cities, palaces, schools, law courts, markets, irrigation works, kings, priests, temples, peasants, artisans, armies, astronomers, merchants, sports, theatre, art, music, and books. High civilization, differing in detail but alike in essentials, had evolved independently on both sides of the earth."
So why did it take us 240,000 years to get to a point where culture and population make astronomic growth? Why didn't mankind of, say, 200,000 years ago build large cities and make cars? Why was it that when a primitive pre-written language, pre-building, pre-agriculture society split after 230,000 years of existence, that both parts of the split went on to rapidly develop very similar advanced societies that were comparable in development when they met?
And if humans can do that, what about other life forms? What about crows, or dolphins? Could they suddenly develop sophisticated technologies?
As usual, more questions than answers.