Short communication: New records of sperm whale social units in the Pelagos Sanctuary, Mediterranean Sea

In the Ligurian Sea, northern part of Western Mediterranean sperm whales (Physeter macrocephalus Linnaeus, 1758) are historically sighted as solitary individuals or loose aggregations males, while social units extremely occasional. On 21 August 2020, two different were recorded in this area with an estimate total (12 first and nine second). The whale subpopulation is considered Endangered under IUCN Red List understanding its movements structure lacking. These observations increase our knowledge on conservation biology possible threats.