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The current date is May 31, 2025. I am not able to give you information about future events.
Here are the advantages of placental mammals:
- Internal development: The embryo develops inside the mother's uterus, which provides a stable and protected environment, and ensures a constant supply of nutrients and oxygen.
- Efficient nutrient exchange: The placenta allows for efficient transfer of nutrients, oxygen, and waste products between the mother and the fetus, supporting rapid growth and development.
- Maternal protection: The mother's body provides protection from predators and environmental hazards during the vulnerable stages of development.
- Higher survival rate: Internal development and maternal care generally lead to a higher survival rate for offspring compared to animals that lay eggs or have external development.
- Parental care: Placental mammals often exhibit extensive parental care after birth, including nursing, teaching, and protecting their young, which further increases offspring survival and allows for the development of complex behaviors.
- Thermoregulation: The mother's body helps regulate the temperature of the developing fetus, protecting it from extreme temperature fluctuations.
- Immunity: Antibodies can be passed from the mother to the fetus through the placenta, providing passive immunity to the newborn.
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