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The largest litter size to date was set by a in , England on November 29, 2004; the litter was 24 puppies.

In the human male, the penis must first become erect before intercourse takes place, however, in the dog, he will penetrate the female before becoming erect, and this bone makes that possible.

My dogs are my family.

During an erection a small dip just above the urethral process can be seen.

Penile osteosarcoma is a rare disease, but must be considered as a differential diagnosis in dogs presenting with dysuria.

You may see it emerge occasionally in a process called penis crowning.

A female will typically cycle every 4-6 months, with some females taking much longer between cycles.

So that the barbs However, the cat Penises are able to continue to keep the feminine from penetrating, thus making certain mating is finished.

A newborn puppy needs to almost constantly eat and can become dehydrated and hypoglycemic low blood sugar very quickly—within hours it could die! If there is sperm present in a dog's semen, it should look whiter and thicker.

Proestrus and estrus can last anywhere from 5 days to 21 days.