A bunch of winged reptiles get cocky and lazy and are then taken by surprise by a bunch of solar storms, forcing them out into the open to fill new ecological niches.
Bruh i wish we had a larger cave
Shut up Kyle, no one wnats to hear your stupid proverbs.
You know the sayin, mo sulfer mo problems.
Would it hurt to get up and do something useful?
This sulfer cave nice. No predators. No problems. Seems to good to be true
Perhaps forming this close to the sun was a bad idea.
The serpentium cornu (latin for a winged reptile) lived in caves lined with sulfur. They rarely ventured out, as they didn't need anything aside from liquid sulfur oxide. They lived on Venus. The immense pressure of this planet allowed sulfur dioxide to exist in liquid form.
The sun really had it our for us
Wow this is terrible. Hopefully the surface isnt to unforgiving. Gonna head out
The serpentium cornu had everything they could ever want. Free food, free space, and could do whatever they want. They also had the gift of intelligence, allowing them to experience reality for thousands of years while not thinking that their reflections were enemies. Additionally, they coexisted with a one eyed arachnoid that was harmless. Little did they know, they were in for a rude awakening.
Where that other one go
These are surprisingly slow and easy to catch
The sun had decided to start flaring, sending massive amounts of supermassive neutrinos to the planet of Venus, causing innumerable bad side effects. Things like DNA damage, mutated pathogens, and bigger predators. It also irradiated and decayed the sulfur dioxide, causing it to break down into fundamental particles. The worst case of this would be when small particles of antimatter would cause "explosions" on the microscopic scale, killing anything affected by it.
How did this not see me coming
shut up kyle
Told u to be satisfied
Many of them died off. The orange in their wings, caused by the mix of sulfur and iron in their blood, would fade to darker shades of blue as the sulfur and iron decayed into fundamental particles and simpler atoms. The few surviving ones had a special allele that increased DNA repair processes as well as tissue repair from the molecular damage of radiation. Unfortunately, had to leave the cave due to rising levels of poisonous gases and earthquakes caused by Venus's core being affected by the increased solar activity, causing them to become a death trap for anyone who ventured in.
As they moved out of the caves they became easy prey for hunting predators. It was also very difficult to catch prey, as they would often be outrun and/or overpowered by seemingly small animals. Their gray color due to lack of sunlight also made them incredibly easy to spot.
Welp, I tried
Imagine not being able to evolve. Can't relate
As the generations progressed, their genes for DNA repair and molecular maintenance became more prevalent, with older gene populations dying out. They also evolved yellow skin to camouflage with the skies of Venus and red eyes to help filter the necessary light to see their prey properly. The original predators eventually succumb to the rapid evolution and solar radiation, allowing the serpentium cornu to fill new ecological niches.