Sentences with phrase «enter estrus»

While the average age at which female dogs go into heat is about 6 months, smaller dogs may enter estrus earlier and larger dogs may not do so until they are nearly 2 years old.

Estrus (heat): Next, the queen enters estrus, or heat.

Not exact matches

She watched young males grow up and leave their families, young females enter their first estrus (the period of sexual receptivity) and elders in their 50s wander off to die.

As the days usually get shorter in late October through mid-December, cats will enter di - estrus.