Photograph of sleeping site sharing between Caribbean night monkeys (Aotus griseimembra) and Quichua porcupines (Coendou quichua) A a group of Caribbean night monkeys (Aotus griseimembra) resting in the upper entrance of the cavity of the avocado tree (Persea americana) B one Quichua porcupine (Coendou quichua) observed resting in the cavity of the same avocado tree. Note the silhouette of a Caribbean night monkey behind the porcupine C photograph of the moment when the group of night monkeys left the cavity to begin their nocturnal activity D photograph of the moment when a second porcupine emerges from the base of the cavity and is located at the lower entrance E both porcupines at the lower entrance of the cavity.