The female lays her eggs in his pouch, where he fertilizes them and carries the developing young until they hatch.
Females lay eggs in leaf litter on the ground in late spring and early summer, and then die.
The beetles kill trees in the course of their reproductive cycle: Adult beetles bore into the trunk and carve out tunnels called galleries, where
the females lay eggs.
D. melanogaster
females lay their eggs exclusively in overripe and decaying fruits.
After
the female lays its eggs inside the ant's body, the larvae move to the ant's head and force it to move away from the nest.
In normal years,
females lay their eggs under 1 to 1.5 meters of water in remote mountain lakes and pools.
Females lay their eggs on vegetation which overhangs ponds, where they may be eaten by the cat - eyed snake.
After they mate,
the female lays eggs and protects them.
Male cichlid fish battle for stretches of lake - bottom territory where
females lay their eggs.
While in captive environments,
females laid eggs for up to six months and brooded for up to eight months.
Females lay their eggs in the fruit and the larvae destroy 15 to 30 per cent of the crop each year as they munch their way to freedom.
Unlike the majority of fish in which
females lay eggs that are later fertilized by males, live - bearers — which include species such as mollies, platies, guppies, swordtails and mosquitofish — have internal fertilization.
Like other reptiles, sea turtles breathe air, and
females lay eggs.
The females lay eggs on the dog's skin, and these can fall off onto the carpet, bed, your clothes, the floorboards, and anywhere else that the dog goes.
When fleas are infesting a dog
the female lays eggs at a rate of about thirty per day.
The life cycle of the brown dog tick starts with
a female laying eggs in a protected crevice.
Females lay eggs on a host's fur.
Not exact matches
Attenborough aims to persuade first through the detail and intimacy of his account of insect life: the
female bumble bee's patient construction of the chamber in which she
lays her
eggs; the cooperative relationship between African acacias and the ants that make «mansions» in the «bloated and hollow» bases of the tree's protective spines (and sting the muzzles of grazing predators, driving them away); the cunning design of the mole cricket's burrow, which amplifies the male's mating song so that, «on a windless night, he can be heard from nearly half a mile away.»
Since only
female chickens
lay eggs, male chicks who have no commercial value to the
egg industry are routinely gassed or «macerated» (ground up alive).
A
female bed bug can
lay up to eight
eggs a day.
We estimate that a
female who mates 2 - 3 times may build 30 - 40 percent of the
eggs she
lays from proteins the male transfers during copulation.
Medullary bone is only found in
female birds, and then only during the period before or during
egg laying.
Drosophila sechellia
females, which
lay their
eggs on these fruits, carry a mutation in a gene that inhibits
egg production.
Female worms
lay many
eggs, which return to the water during urination and defecation.
The flies are strongly attracted by the fruits of the morinda tree: they feed on its fruits, and
females prefer to
lay their
eggs on these.
«We now have an interesting question: What tells the
female worm to
lay its
eggs or mate?»
Certain kinds of male fruit flies, for instance, use a cocktail of proteins in their ejaculate as a secret weapon to gain the edge; these proteins induce the
female to increase her sperm uptake or her rate of
egg -
laying, or even to prevent her from considering any new suitors.
Females lay no more than 20 eggs per year, and there are not many f
Females lay no more than 20
eggs per year, and there are not many
femalesfemales.
The queen
lays eggs; male drones mate with the queen; and
female workers guard the nest, collect food, and construct honeycomb.
«Scientists identify specialized brain areas for feeding and
egg -
laying in hawkmoths: Activity in specific areas in the olfactory center of
female Manduca sexta correlates directly with different behaviors.»
The search for food is linked to other areas in the olfactory center of
female tobacco hawkmoths (Manduca sexta) than the search for plants to best
lay eggs, researchers from the Max Planck Institute for Chemical Ecology in Jena, Germany, found.
After energy - uptake,
female insects
lay their
eggs.
Medullary bone is an inner layer that serves as a quick calcium source for
egg -
laying females.
If the number of
eggs hatching at La Escobilla plummets, the number of
females that arrive each year to
lay should follow suit a few years later.
Larger Pacific Striped octopus; image courtesy of Richard Ross Of the hundreds of known octopus species, most are anti-social, practice safe sex (to avoid getting eaten by a mate) and
lay just one clutch of
eggs before dying.The poorly understood larger Pacific striped octopus, however, seems to break from these conventions: They are somewhat social, they mate face - to - face, and the
females produce multiple batches of offspring.The octopus is so rare that science has yet to even give it a formal Latin name.
In regions with less stable climates,
females were
laying more
eggs that lacked their spouse's DNA, and birds were swapping mates more often between breeding seasons.
Alabaman
females lay males first; the final
egg laid is
female.
From the time that hatchlings left the beaches where they were born to waddle into the ocean until
females returned to
lay their
eggs, no one really knew where the turtles went or what they did.
The
females live about twice that and
lay about 30
eggs in their lifetime.
Female fairy - wrens
lay smaller
eggs when «nanny» males are available to help feed the young, reducing the mothers» reproductive investment and increasing their survival.
The
female keeps a harem of up to four males, copulating, on average, 65 times per breeding season — far more than is necessary for fertilization — before
laying a clutch of four
eggs.
After an
egg is
laid, researchers can tell how much sperm the
female has left by counting the number of sperm caught between the
egg membrane and the shell.
Female collared flycatchers settle their nests with one mate but often
lay eggs fathered by a studlier male.
The secret, the team reports in the 17 August issue of Science, was that
eggs laid by
females in cooperative groups were 5 % smaller than those
laid by
females who bred in pairs, and their yolks had 12 % less lipids and 13 % less protein.
So
females that
lay a larger number of smaller
eggs end up with more surviving offspring.
After hatching and dispersing across the world's oceans, only the
female leatherbacks return to their natal beaches to
lay clutches of
eggs in the sand.
It is meant to entice pregnant flies, which, in the process of looking for a place to
lay eggs, can spread pollen from male to
female plants.
Female cowbirds were better off
laying their
eggs in forest nests: Cowbirds that
laid eggs in fields averaged only five fledglings, she estimated, whereas those that
laid eggs in forest birds» nests ended up with 12.7 fledglings.
Every year, almost half a million
female olive ridleys (Lepidochelys olivacea) come to Gahirmatha beach in Orissa and the nearby islands, where they
lay more than 50 million
eggs.
The stakes are high, as the contests determine which males get the first - rate
females and supreme
egg -
laying sites.