Do sheep have Periods like a human female? LiSa

Sheep do have periods just like female humans. A sheep’s cycle lasts about 17 days. They are in heat, or most receptive to fertilization, for about a day or day and a half. This occurs in sheep when days are shorter, generally from October to November. Outside of these times, sheep are most likely in a phase called anestrus and do not go into heat.
Updated on Wednesday, February 01 2012 at 06:55PM EST
Collections: human femalelisasheepmenstrual cyclehumans