en_tn/psa/017/012.md

like a lion eager for a victim, like a young lion crouching in hidden places

These two phrases express very similar ideas. The repetition adds intensity. (See: rc://en/ta/man/translate/figs-parallelism)

They are like a lion ... like a young lion

The writer feels pursued the way a lion hunts its prey (See: rc://en/ta/man/translate/figs-simile)