The eyes that made Zeus famous were also eyes that barely allowed him to see.
What Happened to His Eyes?
There is an important distinction between what is known and what remains uncertain.
Zeus definitely suffered severe visual impairment.
The exact event that originally caused all of his eye problems, however, has not been established with absolute certainty in the public accounts of his story.
The Wildlife Learning Center has previously indicated that his eye disorders were likely related to trauma. Possible explanations have included flying into something or being attacked by a predator.
Some retellings of Zeus's story state definitively that he crashed into a wall.
That version has circulated widely online.
But the most cautious description is that trauma was considered a likely cause and that the precise circumstances were uncertain.
What is clear is what happened afterward.
Zeus was unable to function normally in the wild.
A veterinary ophthalmologist examined him, and despite rehabilitation, his severe vision loss meant he could not safely hunt and survive independently.
That conclusion changed the course of his life.
A New Home
In the summer of 2012, Zeus was given a permanent home at the Wildlife Learning Center.
Located in Sylmar, California, the organization cares for rescued and zoo-born wildlife and provides educational programs about animals and conservation.
For Zeus, it meant food, protection and professional care.
In the wild, every meal would have presented a challenge.
At the center, he no longer had to depend on severely limited vision to find prey.
Caretakers could make sure he received what he needed.
Reports about Zeus have described him eating foods appropriate for a Western screech owl, including mice and mealworms.
More importantly, he no longer had to navigate an unpredictable environment while almost blind.
He could live within a controlled space where caretakers understood his disability.
That changed everything.
The tiny owl who might have struggled to survive alone now had people watching over him.
And before long, those people realized Zeus could contribute something important in return.
Becoming an Ambassador
Wildlife ambassadors play an unusual role.
They may not be able to return to the wild themselves, but their presence can teach people about the animals that still live there.
Zeus became especially effective at this.
Visitors might initially be drawn to him because of his appearance.
Then they would learn his story.
They would discover that he was a Western screech owl.
They would learn that these birds live across western portions of North America and occupy habitats ranging from forests to desert areas and even suburban environments.
They would learn that screech owls are nocturnal hunters.
And despite their name, Western screech owls do not simply produce the dramatic scream people might imagine.
The Wildlife Learning Center describes one of their characteristic vocalizations as a soft trill resembling the sound of a bouncing ball.
Suddenly, a photograph of an owl with extraordinary eyes becomes an introduction to an entire species.
That is one of the reasons Zeus's story became more meaningful than a viral animal picture.
His disability became an unexpected gateway to wildlife education.
The Internet Discovers Zeus
Around 2014, photographs of Zeus began circulating widely online.
The reaction was immediate.
People compared his eyes to galaxies, nebulae and star fields.
Photographs showed a small brown-gray owl whose feathers provided excellent natural camouflage. Then he would open those enormous dark eyes, revealing the shimmering patterns within them.
The contrast was remarkable.
Some visitors reportedly did not initially realize Zeus was alive because he could remain so still.
Then his eyes would open.
According to accounts from the Wildlife Learning Center, visitors sometimes reacted emotionally when they finally saw them.
The photographs naturally traveled far beyond California.
Zeus appeared on websites around the world.