Animal Gestation and Incubation

The Gestation period of an animal is the length of time from conception to birth. In this category you'll find questions and answers about the gestation period of most animals including embryo development inside the body of the mother (viviparous) and outside the mother (Oviparous) such as animals that lay eggs.

2,387 Questions
Endangered, Vulnerable, and Threatened Species
Animal Gestation and Incubation

How many litters does a tiger have?

3 or 4 cubs

Animal Gestation and Incubation

How long is the gestation period of a muscovy duck?

35 days

Slugs and Snails
Animal Gestation and Incubation

Do sea snails lay eggs?


Animal Gestation and Incubation

What is the gestation tube?

A uterus could be described as a gestation tube; that is where gestation (the growth of a fetus) takes place.

Goats and Sheep
Animal Gestation and Incubation
Cattle Reproduction

What is the gestation period for sheep?

Average 147 day gestation period for a Sheep. Sheep gestation periods can generally be anywhere from 144-151 days.

Animal Gestation and Incubation

How long is the incubation period for a duck?

It's 28 days for all domestic ducks except Muscovies, who are 35 days. Muscovies, at least, sit undisturbed for 24 hours when commencing the sit.

If you have "other duck" eggs that you want to add to the Muscovy's clutch, wait a week and make sure the eggs are warm when you slip them under. You have a fair chance of success. She won't mind that one of her ducklings looks a little different from the others.

It isn't diligence: it's the fact that the duck eggs need more humidity so it kind of forces mum to get up, go swimming, get a bit wet so as to transfer humidity to her eggs.

Incubation period for duck eggsOnce they have laid their clutch and have started to sit on them full-time it normally takes 28 days to for them to hatch. Ducks will get up and roam around a bit occasionally to eat and drink (they are not as diligent as chickens; who will sit for longer periods of time and slow down their metabolism so they don't need as much nourishment.) Always make sure to have water around, though for ducks (and even chickens, in a smaller amount) because they need to wet their feathers occasionally when they are hatching eggs. (If you've ever hatched eggs in an incubator...this is why they need to be spritzed with water periodically.)

Also, ducks will remove bad eggs (or unfertilized) from their nests and carry them away so pests don't bother the nest. This is normal, but be careful where you walk because ducks leave them all over the place. They never pick a spot and just leave all of them in the same place! This is probably instinctual to help thwart predators, though. They are not being vindictive. (Although with ducks, it's sometimes hard to tell!)

(The term for eggs is incubation. Gestation is for live young, as in most mammals.)

Animal Gestation and Incubation

What does feline and gestation mean?

'Feline' is the generic name for the cat family - lions, tigers, house cats are all 'felines'.

'gestation' is the period of time that an animal carries its young in the womb. The gestation time for a cow is 9 months like a human woman. The gestation time for cats is about 60-67 days. even if your moma is fat dont cry about it

Endangered, Vulnerable, and Threatened Species
Prehistoric Animals
Animal Gestation and Incubation

In what period did mammals develop?

The earliest direct evidence for true mammalian life lies in a single fossilized brain case, found in China and described by Zhe-Xi Luo and Ai-Lin Sun in the 2001 issue of Science. The find, named Hadrocodium wui, dates to around 195 million years ago, placing the origin of true mammals sometime before the early Jurassic Period and perhaps even the late Triassic Period.

Animal Gestation and Incubation
Rabbits and Hares
Rabbit Breeding & Reproduction

What is the gestation period for a rabbit?

21 days

Animal Gestation and Incubation
Rabbit Breeding & Reproduction

How long is a rabbit's gestational period?

I love rabbits

Goats and Sheep
Animal Gestation and Incubation
Kingdom of Kush

What is the gestation period of a Nubian goat?

On average five months

Dog Health
Animal Gestation and Incubation
Labrador Retrievers

What is the Gestation period for labrador retriever?

Generally 63 days, search canine reproduction on the web to get the details. Preganancy is difficult to detect for the first half of the pregnancy or even longer.

Animal Health
Prefixes Suffixes and Root Words
Animal Gestation and Incubation

Can a hermaphrodite self impregnate?

No. Human hermaphrodites are not actually both male and female. Genetically they will either be male or female, and thus will either produce sperm or eggs (ova), but never both.

People who are considered hermaphrodites acutually only have "ambiguous genitalia" usually due to hormonal imbalances in utero. For example, if a female fetus is exposed to testosterone in the uterus, she will develop ambiguous genitalia or if a male fetus is not exposed to enough testosterone in the uterus, he will develop ambiguous genitalia.

Shark may have done it

National Geographic has a story about a shark who this may have happend with.

Very far fetched, yet possible. Found to occur in rabbits before!
Animal Gestation and Incubation

No evidence of intrauterine gestation at 4 wks pregnant?

In the ER we do not listen for fetal heart tones until 10 weeks. The fetus is just too small. good luck Joymaker RN

Animal Gestation and Incubation
The Difference Between

What is the difference between fetotomy and embryotomy?

Fetotomy means cutting or slicing the dead over-sized or mal-dispositioned fetus during parturition and after the fetus completed the gestation period while embryotomy means cutting the embryo before the end of gestation period.

Guinea Pigs
Animal Gestation and Incubation

How long does it take to roast a pig?

The length of roasting time would depend on the size of the pig, whether or not you stuffed it, your coal load and the type of cooker. These comments concern a cooker with cover rather than open pit style.

Most 275 gallon oil drum type of cookers are long enough for a 60-75 lb pig if part of the legs are removed to fit.

7 hours is probably the outside length of time and would likely be a stuffed pig. If the pig is stuffed with fruit, veggies, sausages, poultry, etc. you will need to cook until they are done. If the cavity is open to the heat, the pig will cook from inside and outside but exposing the inside will cook it faster as the heat does not have to penetrate the thick skin and fat layer beneath it.

BEST practice is to use a thermometer and occasionally stick it into the rump to check to see if it hit 140+ When the rump hits that, give it no more than 1 hour. Tend your coal and try not to open it up too often. Remember if it is enclosed, it is an oven and you are letting the heat out.

Animal Gestation and Incubation

What do you mean by gestation period?

Global Warming
Animal Gestation and Incubation
The Sun

Will the sun ever burn out?

The Sun does not "burn", like we think of logs in a fire or paper burning. The Sun glows because it is a very big ball of gas, and a process called nuclear fusion is taking place in its core. Nuclear fusion occurs when one proton smashes into another proton so hard that they stick together...and release some energy as well. This energy then heats up the other materials (other protons and electrons and such) nearby. This heating eventually grows out from the center (or core) of the star to the outside, finally leaving the surface and radiating out into space to be the heat and light we know stars emit.

People, including scientists, sometimes say that the Sun "burns hydrogen" to make it glow. But that is just a figure of speech. Hydrogen really doesn't burn, it fuses, into helium. So no oxygen is required!

(Source: See related NASA link.)

When things here on Earth burn, what is happening is that oxygen is combining with the molecules of the burning substance and releasing energy, which is the heat of the burning. Some materials give off more heat when combining with oxygen, some give off less. If a material does not readily combine with oxygen, or if the amount of energy released when it does combine is too low, we say that the material is not flammable.

What goes on in the sun, however, is not "burning" like here on Earth. There is no oxygen (or more accurately, no where near enough oxygen, there is a little) in the sun for any kind of normal burning to take place. What is going in is a process called nuclear fusion.

In the sun, hydrogen nuclei are fused together to make helium. This is similar to burning on Earth in the fact that two things are combining together to release energy, but different in every other way. For one thing, the materials involved are different. For another, oxygen on Earth combines chemically via the outer electrons with an appropriate fuel to burn, whereas in the sun, it is the nuclei of hydrogen atoms which are combined. The interior of the sun where this takes place is much to energetic for the hydrogen atoms to even have any outer electrons. Lastly, while chemical burning on earth releases only a little energy compared to the mass of burning materials, nuclear fusion on the sun releases a huge amount of energy compared to the masses of hydrogen involved.

But just like any fire on Earth, the sun can't go on burning forever. When all of the hydrogen has been fused into Helium, the sun will change somewhat and start to fuse the helium nuclei. This does not release as much energy as the fusion of hydrogen, however. This will continue through other elements until the only thing left is gaseous iron, and the sun eventually dies. Don't worry about that, though, our sun has another good 5 billion years left before it dies!

Animal Gestation and Incubation

What is a cheetah's gestation period like?

Cheetah's mate and reproduce all year round. They don't have any mating season as such. After a gestation period of around 90 to 98 days, a female give birth to a litter of upto 9 cubs. But, the average litter size is between 3 to 5 cubs. The cubs weigh an average of 150 to 300 grams at birth and stay with the mother for approximately 2 years. During this period, the mother protects her cubs and feeds them.

Male cheetahs take no part in raising the young ones. The females do it all by themselves.

Guinea Pigs
Cows and Cattle
Dog Behavior
Animal Gestation and Incubation

How long do cows remember something?

The will remember things for a lifetime, like a certain area that they eat in or a certain location that they last felt pain. Short-term memory, though only lasts for a few seconds.

Chickens and Roosters
Care of Birds
Animal Gestation and Incubation

How Do chickens lay infertile eggs?

As long as there is no rooster around to mate with the hens, you will not receive fertile eggs.

Goats and Sheep
Animal Gestation and Incubation

What is a gestation period for a goat?

It depends on breed: some breeds, like Nigerians, have a longer gestation period than others. The average, however, is 145-155 days in length.

Animal Gestation and Incubation

Do larger mammals have longer gestation periods?

That is a pretty good rule of thumb and is true most of the time. I'm sure there are exceptions. A sperm whale has a gestation period of almost two years and a mouse has one of about three weeks.

Animal Gestation and Incubation

Where does Human gestation occur?

womb egg travels from fallipian tubes from ovaries

Animal Gestation and Incubation

How long is the gestation period for a hamster?

The gestation period, or pregnancy can vary between species, ranging from from 16 days for the Syrian hamster, and up to to 30 days for species of the Dwarf hamster.


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