There are animals in the fossil record that challenge some of our most basic ideas about what animals are supposed to look like. If there ever was a monster on this planet that was worthy of the name, it might have been the Tully Monster.
| Creator | Hank Green |
|---|---|
| Actor | Kallie Moore, Blake de Pastino, Michelle Barboza-Ramirez |
| Country | United States of America |
| Production | PBS Digital Studios |
| Season 0(6 episode) |
|---|
| Season 1(24 episode) |
| Season 2(45 episode) |
| Season 3(39 episode) |
| Season 4(39 episode) |
| Season 5(31 episode) |
| Season 6(68 episode) |
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