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(CNN) — Immunologist Jacob Glanville came across media reports in 2017 of a man who had injected himself hundreds of times with the venom of some of the world’s deadliest snakes, including cobras, ...

Self-taught venom expert Tim Friede has voluntarily injected himself with snake venom 856 times across 18 years. Now, in spite of the odds, Friede's extremely dangerous hobby has led scientists to ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Immunologist Jacob ...