Livyoson
Name of a great fish of the sea that will reappear when Moshiach comes. The Talmud (Bova Basra 75a) states: “Rabba says that Rabbi Yocḥanan says: In the future, the Hakodosh Boruch Hu, will make a feast for the righteous from the flesh of the Livyoson. The Livyoson also appears in Tehilim (104:26) "This Livyoson You created with which to play..." and in Iyov (40:25) “Can you pull the Livyoson with a harpoon or press down his tongue with a rope?”. The name Livyoson comes from the word in Loshon HaKodesh Levoyoh which means accompaniment. Also, fish are from the sea, which represents the hidden spiritual realm.
Shor HaBor
This refers to a great wild bull, also sometimes called Behamos (Iyov 40:15) that will reappear when Moshiach comes. The Midrash Rabba on Parshas Shmini describes a match that will take place in the Messianic era between the Livyoson and the "Shor Habor". The Medrash describes how the bull will attack and kill the Livyoson with its horns, while the Livyoson will attack and kill the bull with its fins.
