Do you mean a Staffordshire Terrier mixed with a Boston Terrier?
Bottle-Nosed Dolphins are ready to mate when they are about 15 years old. That does seem a little odd to a human but that is the time of life when the dolphin is ready to mate.
If they are not too old and the female is ready, then they will mate.
as good as it feels and when they are ready
It all depends on the training you give him, and socialisation.
When she's over 4 months old, she'll be able to mate.
Old English Toy Bulldog, the white English Terrier, and a little of the French Bulldog
Most turtles are ready around 4-9 years old
they can mate when there ready to be separated by the mother which is usually 3-5 weeks old maybe a little longer.
All dogs are different. Some will grow whiskers when they are a few months old. Others will start when they are two years old! All dogs are different!
Because she might not be old enough and she might not be ready because if you keep on pressuring her she not going 2 want 2 do it when she really is ready.
A female must be sexually mature so about 18months of age and must be at the peak of her cycle and ready to mate.