In Homeric poetry, similes are very common and introductions to them can often be identified in English translations by the word "like" or the phrase "just as." Often these comparisons are drawn from images in nature.
Some of these similes are very brief, such as the one that occurs in Odyssey 1.306-324, the goddess Athena leaves the palace of Odysseus "soaring upwards like a bird" (A.S. Kline translation).
Other epic similes are lengthier. In Odyssey 6, when the naked Odysseus emerges from his bed of leaves and approaches Nausicaa and her companions he is described as being "like a mountain lion, sure of its strength, that defies the wind and rain with blazing eyes".
In Odyssey 22.378-432, after Odysseus has slaughtered the suitors, the poet compares them to a heap of fish that fishermen have caught in a net and dragged to the shore.