There are other examples of intra-species violence — one example that comes to mind is species like spiders, where the females will eat
the males after mating.
The common name widow spiders is sometimes applied to members of the genus due to the behavior of the female of eating
the male after mating, although sometimes the males of some species are not eaten after mating, and can go on to fertilize other females
Which of the following females often eat
the male after mating?.
Not exact matches
Genesis tells what God intended and it was God created them
male and female — man needed a
mate and that was a female — The bible used to be very hard to understand but I sought the Lord with all my heart and I read it now and it does not contradict itself — Many prayers have been answered and I believe in Jesus Christ as Lord and Savior — I can not imagine living in this world as it is and not having that anchor that holds me together day
after day.
They say that other species in which
males show a similar testosterone decline are generally those in which there is innate paternal care for offspring, compared to species where there is no paternal care
after mating.
Black leaders started voicing their concern about this state of affairs almost immediately
after Cuomo picked Rochester Mayor Bob Duffy — a white
male upstater — to be his preferred LG running
mate.
The study, led by Dr Allan Debelle and Dr Rhonda Snook in the University's Department of Animal and Plant Sciences, looked at the
mating patterns of fruit flies
after they evolved for 100 generations in either polyandrous populations (where several
males have to compete for a single female) and monogamous populations (where each
male has access to only one female).
If the female decides that the
male is a suitable candidate for
mating after listening to his singing, she will spawn in his nest.
As I point out in one section about
male preferences, there's a tendency to focus on older
males who reenter the
mating market
after divorce, and evolutionary psychologists take this to be pretty firmly clinching evidence in favor of their hypothesis.
Sometimes — but not all the time — she devours the
male after he jumps on her back to
mate, seen here.
(Nevertheless,
after 24 hours even females that
mated with
males lacking HP - I rejected additional partners, suggesting that other chemicals transmitted by the
male are responsible for influencing female behavior over the long term.)
Five to eight weeks
after the transplant, Wu and colleagues
mated those mice with healthy
males.
After mating, the female stashes sperm from several
males in a specialized organ called a spermatheca before using some of the stored sperm to fertilize her eggs.
That work revealed that
after mating, seminal fluid proteins passed from
males to females led to changes in gene expression in females and led females to increase egg production, reduce feeding and decrease their likelihood to
mate again.
Soon
after mating, the females quit trying to adjust their flight tones to harmonize with the
males.
The females» loss of interest
after a single
mating suggests that if they could be fooled into pairing with mutant
males — laboratory - reared to generate sterile offspring — they might duck out of the
mating game for several egg cycles, or perhaps permanently.
The animals shed their outer
male organs 15 to 30 minutes
after mating, but they were equipped for love again
after roughly 24 hours.
In other cases,
males and females look so similar to one another that
males can not tell if potential
mates are female until
after they have mounted them.
After a series of unsuccessful
matings between the zoo's first pandas, a female named Ling - Ling and a
male named Hsing - Hsing, the zoo brought in another
male from London to
mate with Ling - Ling, Kleiman recalls.
Among lingcod, Bishop explained, the
male not only chooses the nesting area — which he uses to help attract a
mate — but also guards the nest
after the female deposits her eggs there.
Lygaeus equestris is shown
after mating with processus uncoiled and a close - up of the external
male genitalia
after mating (from a 3 - D X-ray scan).
But these
males mate for life, reuniting with the same female year
after year during
mating season.
A female white - spotted frog responds to the
mating call by entering into the bamboo section to lay her eggs on the inner walls of the section, leaving
after the
male frog has fertilised the eggs.
The biology of aphids is bizarre: they can be born pregnant and
males sometimes lack mouths, causing them to die not long
after mating.
After a female chooses a large
male, he places his sperm packet inside her oviduct and stays with her until she spawns so that no other
male has a chance to
mate with her.
After mating and living with a pregnant female, a
male mouse will switch behavior and begin taking care of the offspring — even if they are not his.
Self - castration
after once - in - a-lifetime sex helps coin spiders protect their
mate from the unwanted attentions of other
males
After each pair had
mated and the
male's palp was left in the female, the researchers dissected the female and counted the sperm in her abdomen and the amount remaining in the embedded palp.
Male Darwin's bark spider use genital lubrication and binding to stop their
mates from eating them
after copulation
So far, only
males have ventured into Arizona, likely searching for territory and
mates after dispersing from a breeding population about 130 miles south of the border in Mexico.
For the first time, scientists studied these cephalopods in captivity, allowing 24 octopuses (13
male and 11 female) to
mate in large tanks
after acclimatizing to their new homes.
MOST
male spiders bail out
after mating — but not one South American species.
Led by first author Junsu Kang, the scientists identified anatomical structures that
male fish use during
mating that produce a signal that impedes regeneration of the pectoral fins
after injury.
After comparing the brains of
males with offspring with brains of childless
males in
mating pairs, Kozorovitskiy and Gould found that fathers not only had more connections between neurons in their prefrontal cortex, a region involved in anticipating consequences and attaining goals, but they also had more receptors for vasopressin, a neurohormone linked to social interaction and bonding.
«We found that female hyenas prefer to
mate with
males who have immigrated into their pack, or who were born into the clan
after the female was born,» says Höner.
Floating can be a successful breeding strategy as bachelor
males avoid investing their energy into defending territory and looking
after chicks, instead spending time searching for
mates.
Males rarely force females to
mate, but
after years spent observing the animals in the wild, Huchard noticed that a subtler form of sexual coercion appeared to be going on.
The
male dies
after mating and is absorbed by the host's body, so that's not so bad.
The
mating season brings about violent tendencies in adult
males, who regularly kill cubs to trigger sexual receptivity in mothers who would otherwise come into heat only
after raising their cubs to independence.
The
males grab her by the neck and forcibly
mate with her, one
after the other, while her partner watches helplessly from afar.
Interactions between the two sexes and between competing
males commonly occur
after the pageantry of courtship and
mating subsides, and the battles reach all the way down to the level of genitalia and gametes.
Female fruit flies become aggressive
after mating because of a peptide in the
male's sperm.
Six homozygote
males were each
mated with two wild type females and individually produced no pups
after four months.
The organ of
male orb spiders break apart inside the female
after mating, providing the
male with an oppportunity to escape before being devoroued by his partner.
The «abhorrent» dating tactics of the
male redback spider: Scientists find they target immature females who haven't yet learnt to eat them
after mating Car companies use crash test dummies when they want to figure out how to make their vehicles safer.
After learning just how much a
male stripper act like the Chippendales make for performing at local bars, Gaz recruits his own ragtag group — including best
mate, Dave (Mark Addy) and former boss, Gerald (Tom Wilkinson)-- to put on a show of their own.
• A female chicken will
mate with many different
males, but if she decides,
after the deed is done, that she doesn't want a particular rooster's offspring, she can eject his sperm.
Male ticks often die
after mating.
Testosterone blood levels drop slowly
after neutering and
male rabbits will still try to
mate with female rabbits for several weeks
after the testicles are removed.