Here's why:
* Pregnancy is a natural process: Mares are designed to be reproductively active, and it's not uncommon for them to get pregnant while still nursing a foal.
* Foal weaning: While weaning can be stressful for both the mare and foal, it's typically done gradually, allowing the mare's body to adjust.
* Separate processes: Pregnancy and lactation are distinct processes within the mare's body. While there might be a slight hormonal interplay, it's usually not significant enough to affect the unborn foal.
However, there are some potential risks to consider:
* Mare's health: If the mare is severely malnourished or experiencing health problems, it could affect both pregnancies.
* Stress: If the mare is under extreme stress due to the presence of two foals, it could potentially lead to complications.
* Competition for resources: While the mare's body is capable of supporting two pregnancies, the second foal may be slightly smaller due to the first foal's continued milk intake.
It's always recommended to consult with a veterinarian: They can assess the mare's individual health and determine if there are any potential risks associated with a second pregnancy.