Dear colleagues, We are hosting the IV Edition of the workshop: “*What is new in cetacean pathology*” at the ECS conference (O Grove, Spain). The workshop will be held on Monday 17th, as a full-day workshop. The cost of the workshop is 30 EUR. Payment will be onsite at the workshop in cash. This workshop provides a dedicated forum for experts in marine mammal pathology to share and discuss new pathologies, outbreaks, diagnostic tools, etc., in the context of marine mammal pathology and conservation within the conference. The workshop aims to use pathology as a tool for cetacean health and conservation. Advances in cetacean pathology, including field, laboratory diagnosis, new methodologies, and tools, will be presented and discussed. The workshop will consist of invited speakers and a case report discussion and presentations. We are looking for an interactive and dynamic atmosphere for exchanging knowledge. The expected outcome of the workshop is the in-situ exchange of knowledge, continuing education in marine mammals' pathology, and strengthening collaboration and networking among marine mammal pathologists. For registration, please send your full name, affiliation, country, and contact email to: yara.bernaldo@ulpgc.es We look forward to seeing you all in person finally after these years of a break because of COVID. See you in Galicia, Prof. Antonio Fernández PhD Yara Bernaldo de Quirós