The upcoming discussion will update you about the difference between prototheria and theria. Difference # Prototheria: 1. Eggs or Young ones : Oviparous 2. Mammary: Mammary glands are without nipples or teats. 3. Glands: Indistinct or absent. 4. Pinna: Present and is formed by the nasal and premaxilla bones. 5. Beak Cloaca or anus: Cloaca 6. Teeth: Absent, only temporary [...]
The upcoming discussion will update you about the difference between metatherian and eutherian. Difference # Metatherian: 1. Marsupium (Brood pouch in the abdomen): Present in most females [absent in Australian numbat (marsupial ant- eater—Myrmecobius fasciatus), American Chironectes, Marmosa, and Monodelphis] 2. Young: Extremely immature young's are born and complete their development in the marsupium. 3. Vagina: Double vagina (= Didelphia). [...]
Let us learn about the comparison between megachiroptera and microchiroptera. Comparison # Megachiroptera: 1. Size: Largest amongst bats 2. Food habit: Frugivorous. 3. Eyes: Large in size. 4. Snout: Elongated. 5. Pinna: Simple and devoid of leaf-like auricular appendages. 6. Tail: Free from inter-femoral membrane. 7. Claws in fore-limb: Both the first and second digits are clawed or only second [...]