Snakes.
There are none in Ireland. It is said that Saint Patrick banished them from Ireland.
Herbert Hoover
Ireland
Romeo says it after he kills Tybalt and is banished to Mantua.
There is no town that could be said to be the most popular in Ireland.
The notion that St Patrick banished snakes from Ireland is quite a dubious claim, it is certainly possible there were never snakes in Ireland. There are Grass snakes in Britain clearly Ireland's nearest neighbour, the last time there was a dry connection between Ireland and GB was during the Ice Age when they were joined by ice at the north. This is when humans are said to have come to Ireland, I don't know if snakes like ice very much so maybe that's why they didn't venture over here then :)
Nobody discovered Ireland, but it's earliest settlers are said to have arrived in Ireland around 8,000 years ago.
GNOME
It is often said that it is the Celts, but genetic research has shown that the original people came to Ireland from the north of Spain about 9000 years ago.
Zombies are the creatures that return from the dead.
A creature with an external skeleton is said to have an exo-skeleton.
the one eyed cactuss