Alpaca Crias
In alpacas, pregnancies last 11 to 12 months, and usually result in a single cria. Twins are rare, approximately 1⁄1000, slightly rarer than the proportion of twins in human births. Twin cria births are not only rare, but dangerous. A twin birth can kill both the mother and crias. Male crias are taken out when the mother weans him. Female crias are weaned by the mother but not taken out.
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