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  2. Egg incubation - Wikipedia

    en.wikipedia.org/wiki/Egg_incubation

    In the latter, the eggs develop in utero for about 28 days, with only about 10 days of external incubation (in contrast to a chicken egg, which spends about one day in tract and 21 days externally). [11] After laying her eggs, the female curls around them. The incubation period is divided into three phases.

  3. Common murre - Wikipedia

    en.wikipedia.org/wiki/Common_murre

    Murre eggs. Common murre eggs are large (around 11% of female weight [39]), and are pointed at one end. The egg's pyriform shape is popularly ascribed the function of allowing the egg to spin on its axis or in an arc when disturbed, however there is no evidence to support this claim. [40] Various hypotheses have arisen to explain the egg's shape:

  4. Ostrich egg - Wikipedia

    en.wikipedia.org/wiki/Ostrich_egg

    Ostrich eggs are the largest of all eggs, [4] though they are actually the smallest eggs relative to the size of the adult bird — on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kilograms (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [5]

  5. List of mammalian gestation durations - Wikipedia

    en.wikipedia.org/wiki/List_of_mammalian...

    Large mammals develop at an absolute slower rate compared to small mammals. Thus, the large mammal tend have longer gestation periods than small mammal as they tend to produce larger neonate. [ 22 ] Large mammals require a longer period of time to attain any proportion of adult mass compared to small mammals.

  6. Common snapping turtle - Wikipedia

    en.wikipedia.org/wiki/Common_snapping_turtle

    One study on the incubation period of the common snapping turtle incubated the eggs at two temperatures: 20 °C (68 °F) and 30 °C (86 °F). The research found that the incubation period at the higher temperature was significantly shorter at approximately 63 days, while at the lower temperature the time was approximately 140 days. [25]

  7. Albatross - Wikipedia

    en.wikipedia.org/wiki/Albatross

    In all albatross species, both parents incubate the egg in stints that last between one day and three weeks. Incubation lasts around 70 to 80 days (longer for the larger albatrosses), the longest incubation period of any bird. It can be an energetically demanding process, with the adult losing as much as 83 g (2.9 oz) of body weight a day. [43]

  8. Lolo Jones Shares Tearful Egg-Freezing Video: I’m ‘Running ...

    www.aol.com/entertainment/lolo-jones-shares...

    The Olympian, who turns 40 on Friday, August 5, shared an emotional Instagram video on Wednesday, detailing the process she’s undertaking to freeze her eggs via IVF.

  9. Megapode - Wikipedia

    en.wikipedia.org/wiki/Megapode

    Their eggs are unusual in having a large yolk, making up 50–70% of the egg weight. [5] The birds are best known for building massive nest mounds of decaying vegetation, which the male attends, adding or removing litter to regulate the internal heat while the eggs develop.