Almost all of these frogs live in wet tropical rainforests and their eggs hatch directly into miniature versions of the adult, passing through the tadpole stage within the egg.

The initial single cell combination is already dividing and by the time of entry into the uterus, the egg might have already reached the blastocyst stage.

The vast majority of mouse parthenogenones / gynogenones ( with two maternal or egg genomes ) and androgenones ( with two paternal or sperm genomes ) die at, or before, the blastocyst / implantation stage.

These species are parasitic in the larval stage on the larvae of horntail wasps, hence the egg must be deposited directly into the host's body as it is feeding.

Weismann realised that the cells that produce the germ plasm, or gametes ( such as sperm and egg in animals ), separate from the somatic cells that go on to make other body tissues at an early stage in development.

The egg hatches into a miniature version of the adult, without a larval stage.

At its final stage, the female parasite, with fertilized eggs, clings to the gills of the fish and metamorphoses into a plump, sinusoidal, wormlike body, with a coiled mass of egg strings at the rear.

In addition many butterflies are infected by Wolbachia and infection by the bacteria can lead to the conversion of males into females or the selective killing of males in the egg stage.

Hatching from an egg to the first larval stage takes from eight hours to one day.

This is particularly useful in determining developmental stages that are not evidenced by change in size ; such as the egg or pupa and where only a general time interval can be estimated based on the duration of the particular developmental stage.

In the soil, these eggs develop into a 2-cell stage ( segmented egg ) and then into an advanced cleavage stage.

Students have a chance to observe complete life cycles of insect from egg stage to larvae, pupa, moth and eggs.

For a few days the tadpoles live off the food reserves contained within their yolk sacs ( left over from the egg stage ).

The germinal stage, refers to ovum ( egg ) prior to fertilization, through the development of the early embryo, up until the time of implantation.

For instance, while spiders proceed directly from egg to adult form many insects develop through at least one larval stage

Most of the species are parasitoids of other insects, attacking the egg or larval stage of their host, though many other life cycles are known.

Acarine ontogeny typically consists of an egg, a prelarval stage ( often absent ), a larval stage ( hexapod except in Eriophyoidea which have only two pairs of legs ), and a series of nymphal stages.

In the UK, the failure rate at the egg stage had decreased from 17 % to 6 % by the year 2000, and the population had stabilised after reaching a peak in the 1990s.

After remaining in the adult stage for a number of days, the pet can marry and eventually have an egg.

While UVB radiation is an important stressor for amphibians, its effect on the egg stage may have been overstated.

In 1972 science fiction novel The Gods Themselves by Isaac Asimov, baby universes, in their cosmic egg stage, are used as alternative fuel.

The clutch is normally 3-6 eggs, but may contain any number of eggs up to seven ; even more eggs may be laid in total when some are removed during the laying time, which lasts about 2 days per egg laid.

Incubation lasts between 22 and 26 days, and begins after laying the first egg, although it is discontinuous until the second egg is laid.

Incubation begins when the first egg is laid and lasts for about 22 – 24 days.

Incubation lasts 13 days, although the last egg laid may take 24 hours longer than the first to hatch.

Incubation begins with the last egg laid and lasts about 24 days.

The egg stage lasts six days.

The egg stage lasts about 34 days at 80 ° F, while the nymphal stage typically lasts 10 to 12 months but can last up to 2 years.

72 accounts for the island's archaic name Ortygia by asserting that Zeus transformed Leto into a quail ( ortux ) in order to prevent Hera from finding out his infidelity, and Kenneth McLeish suggested further that in quail form Leto would have given birth with as few birth-pains as a mother quail suffers when it lays an egg.

After a few divisions, the egg cell is placed into a uterus where it is allowed to develop into a fetus that is genetically identical to the donor of the original nucleus.

Cells produced by the first few divisions of the fertilized egg are also totipotent.

A few drops of distilled water are added ; then the binder ( egg emulsion ) is added in small increments to the desired transparency.

Tracks primarily consist of two straights and four left-turn corners, few tracks are symmetric and often the shape parallels that of an egg or a tri-oval.

Copulation may last a few days after the egg is laid to enable another egg to be laid should the first one fail.

Mechanisms for this include simple dilution ( an egg contains 100, 000 to 1, 000, 000 mtDNA molecules, whereas a sperm contains only 100 to 1000 ), degradation of sperm mtDNA in the fertilized egg, and, at least in a few organisms, failure of sperm mtDNA to enter the egg.

A few people misinterpreted this issue for an easter egg.

Most species will only have one clutch a year, unless they lose the first ( with a few exceptions, like the Cassin's Auklet ), and many species ( like the tubenoses and sulids ), only one egg a year.

Exocytosis, fertilization of an egg by sperm and transport of waste products to the lysozome are a few of the many eukaryotic processes that rely on some form of fusion.

The term is not used for angiosperms or the gnetophytes Gnetum and Welwitschia because the megagametophyte is reduced to just a few cells, one of which differentiates into the egg cell.

In a few cases, the trochophore remains within the egg ( and is then called lecithotrophic – deriving nutrition from yolk ), which hatches to produce a miniature adult.

Traditionally, Lilliputians broke boiled eggs on the larger end ; a few generations ago, an Emperor of Lilliput, the Present Emperor's great-grandfather, had decreed that all eggs be broken on the smaller end after he cut himself breaking the egg on the larger end.

With IBM and other large industrial concerns cutting workers and closing plants, and people leaving, a large swath of buildable land with few environmental problems was seen by many in the local business community as a goose's golden egg.

) The fruit is sweet, yellowish, and roughly the size of a chicken's egg ; it enjoys some popularity as a native plant with edible fruit and few pests.

Such cases are rare in bees and wasps, which tend to provide all of the food for the larva before the egg is laid ; in only a few exceptional cases ( such as parasitic bumblebees ) will a bee or wasp female feed a larva that is not her own species.

To this date, he has only ignored the alarm call a few times, including the discovery of a dinosaur's egg, the birth of Bamse's children, and a state of deep depression due to the false belief that his carelessness had caused the death of Bamse's children.

Most halictids nest in the ground, though a few nest in wood, and they mass-provision their young ( a mass of pollen and nectar is formed inside a waterproof cell, an egg laid upon it, and the cell sealed off, so the larva is given all of its food at one time, as opposed to " progressive provisioning ", where a larva is fed repeatedly as it grows, as in honey bees ).

In Denmark, lunch is usually a cold meal consisting of a few simply prepared pieces of smørrebrød ( open rye-bread sandwiches ) with slices of cold meat, sausage or hard boiled egg.

* In marine sediments large amounts of sulfate-reducing bacteria causes the rotten egg smell and black material that can be found just a few centimeters below the sediment surface.