Gross Anatomy, Histological and Histochemical Analysis of the Eyelids and Orbital Glands of the Neonate Pygmy Hippopotamus (Suina: Choeropsis liberiensis or Hexaprotodon liberiensis, Morton 1849) with reference to its habitat.

This study enabled to identify additional folds in the eyelids of the pygmy hippopotamus. Lymphoid follicles and diffuse lymphocytes were not found in the lymphoid region in the upper or lower eyelids and the third eyelid, which was most likely caused by the age of the studied hippopotamuses. An accurate histochemical analysis revealed that the secretions of the pygmy hippopotamus are very similar to the Sus scrofa. The structural differences between the pygmy hippopotamus and representatives of Cetacea are most likely caused by the fact that most of Cetacea live in saltwater and are exposed to more frequent fluctuations in water temperature compared to the pygmy hippopotamus, which lives in fresh water and does not lead a migratory lifestyle like the Cetacea. This article is protected by copyright. All rights reserved.
PMID: 32445549 [PubMed - as supplied by publisher]

Source: Anatomical Record - May 22, 2020 Category: Anatomy Authors: Klećkowska-Nawrot JE, Goździewska-Harłajczuk K, Paszta W Tags: Anat Rec (Hoboken) Source Type: research