Text: Even if you do not spot much of the wildlife we mention and you are almost assured of seeing something the sheer experience of the jungle at night, with its incredible noises, the flitting of mysterious fireflies, and the sense of invisible but omnipresent life and movement around you make it all worthwhile.
Entailment: You may not see the mentioned wildlife, but assuredly you will experience the jungle atmosphere at night.
Contradiction: You are guaranteed to see the mentioned wildlife.