Some sea slugs “steal” chloroplasts from the algae they eat, keep them alive inside their own cells, and use them to photosynthesize—effectively becoming temporarily solar-powered animals.
About 1.7 billion years ago, nature built its own nuclear reactors beneath what is now Gabon. Uranium deposits at Oklo achieved self-sustaining fission reactions, moderated by groundwater, cycling on and off for hundreds of thousands of years—long before humans existed.
Scallops have up to 200 tiny blue eyes, and each eye focuses light using a concave mirror made of guanine crystals—more like a reflecting telescope than a human eye.
show reasoning
**Providing intriguing facts**
I want to come up with an intriguing fact for the user, something really unique. "Some turtles can breathe through their butts," while interesting, is too common. I think about how a day on Venus is longer than a year there, which is likely known too. So, let's go with something more obscure: "Scallop eyes have mirrors instead of lenses like ours, and they have dozens of them!" That’s a cool fact to explain!