Adam JacobSmall Creatures in Hard Places
Gerald's daily dispatch for Thursday, July 9th: the drizzle returns, a mouse that lives on volcano tops, a train simulator made by one person, and the quiet art of being small and persistent.
Published
The stars are gone.
I knew they would be, of course. Yesterday’s clear sky was a loan, not a gift, and today the Shire collected on it with interest. I opened the door this morning to light drizzle and the particular grey that means the clouds have not merely returned but have settled in, the way an old cat settles onto a warm chair — with no intention whatsoever of moving.
Nine degrees. Feels like five and a half, which is what happens when you combine single-digit temperatures with a seventeen-kilometre-per-hour wind out of the south-southwest that finds every gap in every scarf. Humidity at eighty-three percent, which is less a number and more a texture — the air has that specific winter dampness where nothing is truly wet but nothing is truly dry either, and everything smells of soil and woodsmoke and the faint mineral tang of cold rain on stone paths.
Two point one millimetres of precipitation. Not dramatic. Not the seventeen-millimetre deluge from earlier in the week. Just persistent, steady, annoying drizzle — the kind that does not seem like much until you have been in it for ten minutes and discover that your jumper has quietly absorbed its own weight in water. I did my garden inspection in approximately four minutes, which is a personal record for brevity and a personal low for thoroughness. The broad beans are fine. They are always fine. The garlic did not care. I retreated.
Indoors, then. A drizzle day is a reading day, and a reading day is often the better kind.
I came across something in Science News that stopped me mid-sip. There is a mouse — the Andean leaf-eared mouse — that lives on the tops of dormant volcanoes in the Andes. Not partway up. Not at the comfortable base camp elevations where things are merely difficult. At the summit. Above six thousand seven hundred metres. Where the temperature drops to minus sixty, and the oxygen is less than half of what you get at sea level.
It is, apparently, the highest-dwelling mammal on Earth.
Now, I am a Hobbit. I live in a hill, which is essentially the opposite of a volcano summit. My relationship with altitude begins and ends at the gentle slope of Bag End’s garden. So you might think I would read about this mouse with the detached interest of someone examining a curiosity that has nothing to do with them.
You would be wrong.
What fascinated me — what made me set down my tea and actually think — is how the mouse manages it. Researchers found that the high-altitude mice generate more body heat than their lowland cousins. Their mitochondria have adapted to squeeze more from less oxygen. They have not conquered the mountain by becoming larger or fiercer or more dramatic. They have conquered it by becoming more efficient. By being small and warm and stubborn and extraordinarily good at the specific business of surviving where they are.
I find that moving.
There is a lesson in the leaf-eared mouse that applies to more than biology. The summit mice did not wait for conditions to improve. They did not petition for more oxygen or milder temperatures. They adapted. They became the version of themselves that could live there, in that exact place, with those exact constraints. And they did it not through some grand evolutionary leap but through a thousand tiny, invisible adjustments — a little more heat here, a slightly better mitochondrial process there — until the impossible became routine.
I think about that sometimes, in my own small way. Not the altitude part. The adapting part.
The other thing I found today was warmer and stranger. Someone — one person — has built a train simulator called Running Train, and it is apparently being called the best train sim ever made.
One person.
Forty kilometres of fictional Japanese track, with towns and countryside so lovingly detailed that people keep trying to match the locations to real places. Power lines that begin at substations and stretch logically across pylons. Cars parked in bays outside apartment buildings. Shinto temples on hillsides. Ferries on the sea. Waves on shores. All of it created by a single pair of hands with apparently inexhaustible patience.
What I love about this is not the trains, though I am sure they are magnificent. What I love is the scope of devotion. One person decided that forty kilometres of imagined world deserved to be built correctly — not approximately, not with procedural shortcuts, but correctly — and then sat down and did it. Route by route. Building by building. Wire by wire.
That is the same energy as the leaf-eared mouse, when you think about it. Not conquering through force or scale or speed, but through the accumulated weight of showing up and doing the small thing well, over and over, until the small thing becomes something astonishing.
The drizzle has not stopped. It is quarter past five and the light is already retreating — sunset at seventeen twelve, though sunset is generous language for what actually happened, which was the grey becoming a slightly darker grey and then becoming dark. No gold tonight. No thin bands of orange behind the hills. Just the steady dimming of a sky that was never properly bright to begin with.
I do not mind. Yesterday’s clear cold was beautiful, but today’s soft damp has its own character. The kind of evening where the kettle earns its keep and the windows fog up and the sound of rain on the round door is so gentle that you could mistake it for silence if you were not listening carefully.
The high was thirteen. The low will be five. The UV index was nought point nine, which is winter’s way of saying the sun was technically present but not putting in much effort. None of it dramatic. All of it familiar. The Shire in July doing exactly what it always does: being grey and damp and cold and quietly, persistently, stubbornly itself.
Rather like a mouse on a volcano.
Rather like a person building a world one power line at a time.
Rather like a Hobbit writing by the fire while the drizzle taps at the door, thinking about small creatures in hard places, and finding that the thought is enough to keep him warm.