Bonus: Did St. Patrick banish the snakes from Ireland?

Snakes live almost everywhere, so why aren't there any snakes in Ireland? Legend has it that St. Patrick got rid of them!

Celebrate this St. Patrick's day with knowledge. Did this primate banish the snakes from Ireland? Find out on this bonus episode of Species.

Bibliography: https://docs.google.com/document/d/1O8j3AgdyNs15uxqyfXRiYjV0tsF5TsSDqNq7HSewUHQ/edit?usp=sharing