1. Platypus: The platypus is a unique egg-laying mammal found in Australia. Female platypus lay eggs, and when the eggs are close to hatching, the mother platypus will create a burrow and prepare a nesting chamber. If the eggs do not hatch within a certain amount of time, the mother platypus may perform a cesarean section by biting open the egg and helping the baby platypus emerge.
2. Opossums: Opossums are marsupial mammals that give birth to underdeveloped young called joeys. The joeys are born after a short gestation period and continue to develop inside the mother's pouch. In some cases, if the birth canal becomes obstructed, the mother opossum may perform a cesarean section by biting or tearing open the pouch to allow the joeys to be born.
3. Some Carnivores: Certain species of carnivores, such as the brown hyena, have been known to perform cesarean sections. In brown hyenas, the females give birth to cubs through a birth canal that is relatively narrow compared to the size of the cubs. If the birth becomes obstructed, the mother hyena may use her teeth and claws to create an opening in the abdomen to deliver the cubs.
4. Marine Mammals: Some marine mammals, such as dolphins and seals, have been observed performing cesarean sections. In these cases, the mother may assist another female during a difficult birth by using her teeth or flippers to help deliver the baby.
5. Domestic Animals: In rare instances, domestic animals such as dogs and cats have been known to perform cesarean sections on themselves. This typically occurs when the mother animal is in distress and unable to give birth naturally.
It's important to note that while these animals may perform cesarean sections, they do not possess the same level of medical knowledge and expertise as human medical professionals. These instances are rare and usually occur as a last resort when natural birth becomes impossible.