Conjoined fetal twins in a harbor seal (Phoca vitulina)

Jennifer K. Olson, Joseph K. Gaydos, Tori McKlveen, Robert H Poppenga, Kay Wicinas, Elizabeth Anderson, Stephen Raverty

Research output: Contribution to journalArticle

2 Scopus citations


In July 2013, a stranded harbor seal (Phoca vitulina) died giving birth to conjoined fetuses. The twins were joined at the abdomen and thoracolumbar spine with the vertebral axis at 180u. The cause of this unique anomaly-a first for this species-was not identified.

Original languageEnglish (US)
Pages (from-to)173-176
Number of pages4
JournalJournal of Wildlife Diseases
Issue number1
StatePublished - Jan 1 2016


ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology

Cite this

Olson, J. K., Gaydos, J. K., McKlveen, T., Poppenga, R. H., Wicinas, K., Anderson, E., & Raverty, S. (2016). Conjoined fetal twins in a harbor seal (Phoca vitulina). Journal of Wildlife Diseases, 52(1), 173-176.