Discover three species of animal that have evolved into some of the world’s smartest animals. How do dogs know when their owners are coming home? Are pigeons faster than cheetahs? And can a pig really grow to ‘Hogzilla’ proportions? Find out the answers to these questions and more.
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | 0 | ||
| Season 1 | June 2008 | 4 | |
| Unassigned Episodes | 0 |
| Season | From | To | Episodes |
|---|---|---|---|
| Unassigned Episodes | 4 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | 0 | ||
| Unassigned Episodes | 4 |
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