Source: BBC 4
2. Devious Defences
14-04-2020
BBC 4
All episodes
1. Marvellous Motion
07-04-2020
6. Peculiar Potions
16-01-2019
5. Puzzling Partners
15-01-2019
4. Fantastic Feeding
14-01-2019
3. Bizarre Breeding
09-01-2019