Let us learn about the comparison between odonoceti and mysticeti. Comparison # Odentoceti: 1. Skull: Asymmetrical in the upper surface. 2. Nasal passages: Directed upward and forward. 3. External nostrils: Unite to form a single hole. 4. Teeth: Persist after birth. 5. Baleen-plates: Absent. 6. Maxilla: Covers most of the orbital process of frontal. 7. Lacrymal: Fused with the jugal. [...]
Let us learn about the comprison between cetace and sirenia. Comparison # Cetacea: 1. Size: Some attain a colossal size. 2. Habitat: Marine forms. Larger species prefer open sea, while smaller forms live in plenty in estuaries and river. 3. Habit: Carnivorous and predaceous animals. 4. Hairs: Absent, except a few bristles around the muzzle which may also be absent [...]
The below mentioned article provides a study note on cetaceans. Cetaceans are true aquatic mammals. There are two lineages among extant cetaceans. One lineage is Mysticeti which includes baleen whales, and the other lineage is Odontoceti that contains the toothed whales (dolphins, porpoises and other toothed whales). The baleen whales are mainly zooplankton feeders (Zooplanktonophagous) and filter their food through [...]