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.

Schoenbrunn Zoo in Vienna, widely regarded as the world’s oldest zoological garden, has announced the birth of three endangered megabats. The newborns—large flying foxes—were filmed clinging to and cuddling with their mother and beginning to explore a newly opened rainforest-style enclosure. Zoo staff released video of the youngsters playing and climbing while keepers monitor their health and development as part of routine postnatal care.

Researchers presented new findings at the European Society of Cardiology meeting showing that laughter therapy can improve some measures of heart health in people with coronary artery disease. In the study, patients took part in guided laughter sessions while researchers measured inflammation markers and cardiovascular performance before and after. The reported results included lower inflammation and improved indicators of heart function after the laughter interventions.

Brazil reported a major fall in Amazon deforestation in July: official figures say tree-clearing and burning dropped about 60 percent compared with the same month last year. The government and the environment minister attribute the decline to political changes and new administration policies, based on national monitoring systems. Scientists caution this reflects a single month and that short-term figures can be influenced by seasonal and reporting factors.

Researchers led by Itzhak Khait at Tel Aviv University have found that some plants produce audible, high-frequency sounds when they are stressed or damaged. The team tested tomato and tobacco plants and recorded ultrasonic clicks that arise during drought stress or after cutting. Sensitive microphones and acoustic analysis allowed detection of these sounds from as far as five meters, suggesting plants may broadcast information about their physical condition.