The Prose Edda on Jormungandr

The Younger Edda: > Chapter Ix. > Loke And His Offspring.

• attestation: Allfather cast the Midgard-serpent into the deep sea where it grew to encircle the earth and bite its own tail

  "he threw the serpent into the deep sea which surrounds all lands. There waxed the serpent so that he lies in the midst of the ocean, surrounds all the earth, and bites his own tail"

The Younger Edda: > Chapter Xiv. > Thor'S Adventures.

• attestation: The Midgard-serpent bit the ox-head bait and the hook pierced its palate

  "The Midgard-serpent took the ox-head into his mouth, whereby the hook entered his palate"

• attestation: The narrator says the Midgard-serpent still lives despite claims Thor struck off its head

  "I think the truth is that the Midgard-serpent still lives and lies in the ocean"