Watch Crash Course Zoology Season 1 Episode 11 Online
- COUNTRIES: United States of America
Nearly every environment on Earth — and that includes animals — is home to some kind of parasite. Today we’re going to talk about parasites not just because they’re an essential part of their ecosystems, but also because by studying them we can learn more about their hosts and even their shared evolution and ecology. So stick with us, this one is going to get a little weird!
