Animals 4 Dolphins 4 Female 4 Male 4 Nematoda 4 Pseudaliidae 4 Pseudorca crassidens 4 Stenurus globicephalae Stranding 4 Taxonomy 4 Uruguay 4 animal 4 article 4 classification 4 dolphin 4 female 4 histology 4 isolation and purification 4 male 4 nematode 4 parasitology 4