Why are there dolphins in rivers, and why do they look... like that? There are a handful of very similar-looking, but somehow unrelated river dolphins around the world. Where did they all come from, and what is it about living in rivers that causes dolphins to look so specific?
| Name | Type | Role | |
|---|---|---|---|
| Sarah Suta | Producer | ||
| Sarah Suta | Host | ||
| Seth Radley | Executive Producer | ||
| Hank Green | Executive Producer | ||
| Meredith Danko | Crew | Interim editorial director | |
| Meredith Danko | Crew | Script supervisor |