Aye-aye lemur picks nose using the entire length of its finger
- Rhinotillexis is the scientific term for nose picking.
- Nose picking is common in humans and remains poorly understood.
- There are several primates known for nose picking and ingesting the nasal mucus.
- Researchers speculated that nose picking may have benefits.
- Researchers observed the first evidence of nose picking in lemurs and relatives with an interesting video showing aye-aye picking its nose.
- Researchers found that the animal inserts the full length (8 centimeter) of its middle finger into the nasal openings and then licks the nasal mucus.
- Additionally, researchers discovered that the nose picking behavior can be observed in more than 12 species of primates.
- Future studies about nose picking in other species of primates and vertebrates may add knowledge on its evolution and perhaps functional role.
A.‐C. Fabre et al. (2022) A review of nose picking in primates with new evidence of its occurrence in Daubentonia madagascariensis, Journal of Zoology. DOI: 10.1111/jzo.13034. https://zslpublications.onlinelibrary.wiley.com/doi/10.1111/jzo.13034
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