You've heard of Earth is space australia now get ready for: Earth is the space Amazon Rainforest. Aliens land on Earth and they are losing their goddamn minds because every square inch of the ground is absolutely PACKED with life like there are hundreds of species just in this one site, there are winged animals flying through the sky and multiple colonies of sophisticated social insects just in the shadow of their ship, this ONE ROCK is covered in MULTIPLE SPECIES OF ORGANISMS that are themselves MULTIPLE ORGANISMS LIVING SYMBIOTICALLY, the tall, woody autotrophs look so different from each other because they're...holy shit that's like 5, 6, 7???? different species on this one site???
they start talking to a human and the human is like "haha yeah that's a crow!" and the alien researcher is like "you called it a 'bird' earlier, is that a different name?" and the human is like "oh a crow is just one species of bird, there's like, 10 others out there"
"On this planet?"
"No, in the back yard right now."
imagine aliens that come from a tidally locked planet where only a thin band of the planet is habitable, or a planet life was only able to develop in small areas at the poles, or in the few pools of liquid water on the planet's surface, or just in isolated areas where geologic activity causes geysers and springs, visiting Earth. They seem completely unprepared for the shock of realizing that Earth's continents appear green because the continents are absolutely covered with green organisms.
The alien biologists are so uncomfortable because there are certain protocols for maintaining certain distances from life signatures to avoid harming unfamiliar organisms, and groves of plant like autotrophs and pools where aquatic life dwells are carefully protected and respected, with very important rules for approach
On Earth, the inhabitants are just. Playing and walking LITERALLY STEPPING ON CARPETS OF ORGANISMS the whole time. the aliens are like "it doesn't hurt them??? Can't you just...move them to a place where you don't have to step on them?" and the humans are like "no of course not, grasses evolved to tolerate being stepped on, and besides, more plants would grow there if we tried to move the existing ones"
It then must be explained that humans would need to regularly spray poisons on the ground to prevent any given area of bare soil from filling up with plant life, and that "regularly" means "multiple times within a single solar cycle." And that the poisons stop working within a few decades because the plants evolve to resist them that fast.
Human: yeah solar is the dominant energy source these days but some of the recent solar farm projects are pretty controversial because they're in reclaimed strip mining sites that others argue should be restored as best as we can to their previous ecological state
Alien: I don't understand...why would you not place the solar farms in an area of the planet with no existing ecosystem?
Human: ...what?
Alien: You have rather sophisticated protective gear and have done some space exploration, surely you could establish them in an area of the planet to which life is not yet adapted?
Human: ...there isn't one.
Alien: ...what do you mean there isn't one
"WHAT DO YOU MEAN YOU 'DON'T KNOW' HOW MANY SPECIES THERE ARE"
"Our biologists would love to collaborate with your Earth scientists to draw up a definitive listing of Earth species and resolve any inconsistencies in the records."
"I don't think you understand what I'm saying. Only 25% of Earth's species have been formally described, at most."
"that's...that's most of them."
"Yes?"
"Well...I suppose the ocean trenches and abyssal plains must be difficult for you to reach...where did you have to travel for your discoveries?"
"Travel? I moved here to Alabama in the first place to study its aquatic ecosystems. The crayfish I discovered live in that creek I showed you earlier."