**AelRed Minor wrote:"**Obviously. Whenever we are talking empirical science we are dealing with probabilities, never absolute certainty. It just becomes tedious to always say that explicitly when we know things with sufficient certainty that a contradictory hypothesis becomes unreasonable to seriously entertain."
And: “The fossil record
suggests they never inhabited Ireland. Unlike Great Britain, which for most of its history was connected to mainland Europe, Ireland has been an island since before snakes existed. With the exception of sea snakes, which only live in the Pacific and Indian oceans, most snakes can’t swim the long distances needed to cross over to Ireland.”
Italics mine
IMHO I just find it to be a little arrogant and grandiose for science (not you dear Poster) to assert that snakes have
never inhabited Ireland. 1) I am sure not every inch or every Layer of the fossil record of Ireland has been surveyed. 2) We are talking
vast amounts of time. 3) When science has made such sweeping claims historically they have been proven wrong at too great a frequency to be taken
that seriously.4) miscellaneous cultures that visited/inhabited Ireland could have imported snakes especially so if they were snake worshippers.

5) Given the Anti - Deity posture of science for the most part, (just try and discuss Intelligent Design with the Scientific community in public) I suspect that scientific community is not above mainting the integrity of their paradigm -at what cost who can say? 6) climate change like the ‘Little Ice Age’ could have caused mass migration and or extinction -perhaps hibernation?