It is uncanny how often a wild animal will display human qualities. For example, a bird defending its nest from predators could be observed as an act of love towards the chicks, or a bear protecting its cubs as a feeling of obligation towards the safety of the new generation of bears. In Grendel this idea is reoccurs more than once as the monster often acts more human than monster while at other times his animal instincts are predominate. Many times Grendel seems to be walking a fine line between the two. It seems that throughout the book these two sides of Grendel are in a constant battle each prevailing at different times. When his more human side is shown, Grendel displays such human qualities such as hatred and loneliness while at other times he displays some of his more animalistic traits such as blood lust.
In the book the monster displays the human characteristic of hatred on more than one occasion. At one point in the novel Grendel is furious with Wealtheow:
I would kill her and teach them reality. Grendel the truth-teacher, phantasm-
tester! It was what I would be from this day forward-my commitment, my
character as long as I lived-and nothing alive or dead could ch