Cats
are seasonally polyestrous, which means they may have many heat periods over the course of a year. A heat period lasts about 4 to 7 days if the female is bred; if she is not, the heat period lasts longer and recurs at regular intervals.
The male cat's penis has spines which point backwards. Upon withdrawal of the penis, the spines rake the walls of the female's vagina. The female needs this stimulation for ovulation to begin. Because of this, females are rarely impregnated by the first male with which they mate. Furthermore, cats are superfecund; that is, a female may mate with more than one male when she is in heat, meaning different kittens in a litter may have different fathers.
There would be a dramatic increase in single pregnancy moms, for one thing.
Not all dogs and cats have large litters. Breeds like the English bulldog typically only have one to three puppies and cat breeds such as the Persian produce far less young than other breeds.
Yes. Cats usually never give birth to one baby at a time. Kittens are birthed in groups, called litters. On average, anywhere from 122 to 182 days can pass between the times that a female cat gives birth to litters.
As cats are mammals, they reproduce by live birth. Kittens are born in litters of 2 or more. The average length of gestation is 9 weeks.
about 4 litters 3.785412 to be exact
Penguins do not have 'litters', they lay eggs and usually lay one egg a year.
One
During fertilization, the egg releases chemicals that prevent other sperm from entering once one sperm has successfully fertilized it. This process is called the zona reaction, which helps ensure that only one sperm can fertilize the egg.
This occurs more likely when in vitro fertilization occurs (IVF). The term means fertilization is preformed in vitro (glass),in a glass dish or glass test tube. More than one egg is used and all are implanted into the uterus. Sometimes all develop and sometimes only one. Also the drugs used make the ovaries produce many eggs.
I'm not completely sure, but i think that there is some similar disease for cats because my cat has had a few litters and a couple of the cats have perpetual shaking. one is worse than the other and he developed it as a kitten and the other started to get a less intense case a few months ago at about a year old. I'm thinking it could be genetic or extreme consequence.
fertilization
3.78 liters