The best way to learn to spot a conspiracy theory is to make one yourself.
Pick a real news story. On the next step you'll choose who's behind it and why. Then walk through the four moves real conspiracists use, with a debunk on every step.
Choose whichever real-feeling headline your imagination will run wildest with. Don't overthink it.

Researchers report that reef-dwelling hogfish have light-sensitive cells embedded in their skin, allowing the animals to sense brightness and adjust their colour without relying solely on eyes. The study, published in Nature, shows this skin-based photoreception can continue to influence colour change even after death. Hogfish live in Atlantic reefs and can shift hues in milliseconds. Those rapid changes aid camouflage, social signalling and may help with temperature regulation and attracting mates.

A YouGov survey carried out in 27 countries finds the Covid-19 pandemic has had the most severe mental-health effects on young people and on women. Younger respondents consistently reported higher levels of anxiety about their mental health and increased worries about their financial futures, while women were more likely than men to say the pandemic had harmed their wellbeing. The findings summarize self-reported experiences rather than identifying precise causes.

Researchers studying more than 15,000 people report that higher physical fitness is linked to a lower chance of developing atrial fibrillation, an irregular heartbeat that raises the risk of stroke fivefold. The study, presented at the ESC Congress 2023, used treadmill exercise tests to estimate fitness in metabolic equivalents (METs) and followed participants over time to see who developed heart rhythm problems or strokes.

Scientists and conservationists are debating de-extinction, the idea of bringing extinct species back using modern genetic tools. Advances such as PCR, genome sequencing and gene editing have made it technically plausible to reconstruct genomes from preserved DNA. Companies like Colossal Biosciences aim to use these methods to create proxy woolly mammoths by editing Asiatic elephant DNA. Proponents argue such projects could help restore lost ecological functions and biodiversity.