Why Some Parasites Are Actually GOOD (And Which Can Kill You)

When we think parasites, we often think of illness, disease, and discomfort. But did you know some of them can actually be helpful? Join Stefan Chin and learn all about them in a fun SciShow compilation all about the world of parasites! SciShow is on TikTok! Check us out at   / scishow   ---------- Support SciShow by becoming a patron on Patreon:   / scishow   ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Chris Peters, Matt Curls, Kevin Bealer, Jeffrey Mckishen, Jacob, Christopher R Boucher, Nazara, charles george, Christoph Schwanke, Ash, Silas Emrys, Eric Jensen, Adam, Brainard, Piya Shedden, Alex Hackman, James Knight, GrowingViolet, Sam Lutfi, Alisa Sherbow, Jason A Saslow, Dr. Melvin Sanicas, Melida Williams ---------- Looking for SciShow elsewhere on the internet? SciShow Tangents Podcast: http://www.scishowtangents.org Facebook:   / scishow   Twitter:   / scishow   Instagram:   / thescishow   ---------- Original Episodes: Human Parasites -    • Terrifying Parasites Inside the Human Body   Brood Parasites -    • Brood Parasites   Mind-controlling Parasites! -    • Mind-controlling Parasites!   Toxoplasmosis: How Parasites in Your Cat Can Infect Your Brain -    • Toxoplasmosis: How Parasites in Your Cat C...   Why Don't Humans Get Heartworm? (Spoiler: We Do) -    • Why Don't Humans Get Heartworm? (Spoiler: ...   Why You Might Want Parasitic Worms -    • Why You Might Want Parasitic Worms