Not for most birds, but there are exceptions.
Some birds are raised exclusively by the male - e.g. Dotterel, Kelp Goose, Upland Goose.
The gestation period. You can also call it the pregnancy period as well.
A young female dachshund can be in heat as long as 21 days. During the first week she may or may not let males mount. Second week she's receptive, third week not so much but still attracting males. This varies with ages, etc. Also, you should not get a female spayed until she is out of heat or well into the third week.
Two marsupials share the shortest gestation period. The Virginian opossum and the yapok (an unusual, rare water opossum) have a gestation period period of 12-13 days. Several sources cite the Eastern quoll of Australia as also having a gestation period of 12-13 days, but this is incorrect. The Eastern quoll's gestation period is 21 days. The longest known gestation period of any animal is that of the African elephant. Its gestation period averages 660 days but can extend to 760 days.
8 months (pregnancy is also referred to as 'gestation period')
Yes, they take turns keeping the eggs warm for approx. 5 weeks but eggs can also be deposited days apart.
It is a fallacy that any mammal has a gestation period of 8 days. Two marsupials share the shortest gestation period. The Virginian opossum and the yapok (an unusual, rare water opossum) have a gestation period period of 12-13 days. Several sources cite the Eastern quoll of Australia as also having a gestation period of anywhere between 8 and 13 days, but this is incorrect. The Eastern quoll's gestation period is 20-24 days.
Also known as the third trimester, it is the final stage of the gestation period where the fetus (or fetuses, depending on the animal in question) experience the most growth in body tissues, and lungs begin to develop and start to become functional.
65-72 days is the period of time that a female guinea pig is pregnant. This is also called the gestation period.
In a fetus, the heart starts beating by the fifth week of the gestation period. This is also when it divides into chambers.
The recent studies show that the longest pregnancy or gestation period is of 3.5 years...yeah quite amazing...According to the the Gunnies world records 2011 the longest pregnancy period is of a common FRILLED SHARK (chlamydoselachus anguineus) of 1279.25 or more daysScientific Classification:Kingdom:AnimaliaPhylum:ChordataClass:ChondrichthyesSubclass:ElasmobranchiiOrder:HexanchiformesFamily:ChlamydoselachidaeGenus:ChlamydoselachusSpecies:C. anguineus
During puberty, the testis starts to grow in size. this is due to the hormones which are produced in this period. The height and weight increase. Also hair starts to rrow in the pubic region and on the face and armpits.
Yes. Us girls have it but also Koreans have it too.. Korean males and females have their period.