why do partridges need to lay so many eggs

why do partridges need to lay so many eggs

[1st century CE] ( Natural History, Book 10, 51): Partridges protect their nests with thorns and twigs so that they are safe from animals. After the eggs are laid the partridge moves them somewhere else, so that the laying place does not become known, and covers them with soft dust. The hens hide their eggs even from their mates, because the males break the eggs so that the females remain available to them. The cocks fight duels with each other over their desire for the hens; it is said that the loser in the fight has to submit sexually to the winner. The hens can become pregnant by merely standing facing the cock, and if they open their beak and put out their tongue at that time, they are sexually excited. Even the air blown from a cock flying overhead, or the sound of a cock crowing, is

 why do you get morning sickness when your pregnant

why do you get morning sickness when your pregnant

Nausea and can be one of the first signs of pregnancy and usually begins around the. It can occurPat any time of the day, and for most women, it seems to stop after theP. Morning sickness is not harmful to you orPyour baby, but if you experience excessive vomiting and cannot managePto keep your food down, you may have HyperemesisPgravidarum can be harmful to you and your baby if severe and leftPuntreated due to the possible lack of and electrolyte imbalances. PThe most important thing is to inform your doctor when these symptomsPappear and discuss possible treatment options. More than 50% of pregnant women experience morning sickness. PMorning sickness refers to the nauseous feeling you may have during theP of pregnancy, which is a result of the increasedPhormones in your body. Morning

 why do you make things so complicated

why do you make things so complicated

Uh-huh, life's like this Uh-huh, uh-huh, that's the way it is Uh-huh, uh-huh, that's the way it is Chill out, what you yelling for? Lay back, it's all been done before And you're talking to me, one on one Why do you have to go and make things so complicated? Life's like this, you You fall, and you crawl, and you break And you take what you get, and you turn it into honesty No, no, no Where you aren't, where it's at you see Laugh out, when you strike your pose Why do you have to go and make things so complicated? Life's like this, you You fall, and you crawl, and you break And you take what you get, and you turn it into honesty No, no, no (No, no, no) (No, no, no) (No, no, no) Chill out, what you yelling for? ...

 why do you never see a baby pigeon

why do you never see a baby pigeon

Head into any city square and it will no doubt be filled with hundreds of head-bobbing pigeons. But despite their strong numbers, you rarely (if ever) see their chicks. бThey are like a modern-day urban unicorn, albeit slightly less majestic and a little moreбgrubby. Fortunately, there are some simple explanations to this dilemma. First of all, the pigeons you come across eating leftover pizza in the streets are most likely feral pigeons ). This subspecies of bird was originally bred from the wild rock doves that roost and breed among sea cliffs and rocky mountain crevasses aroundб Europe, North Africa, and western Asia. Although this subspeciesБ home is now a busy metropolis instead of a rocky coastline, they still tend to nest in the high-up edges and cavities of buildings. БOnly if

 why do people cut themselves yahoo answers

why do people cut themselves yahoo answers

People cut themselves because they are anxious or depressed and reach a breaking point where no other method of coping seems plausible. Some people cut to. People cut themselves because they are anxious or depressed and reach a breaking point where no other method of coping seems plausible. Some people cut to relieve stress, and some cut because they think they deserve to destroy themselves. Cutting is a way of finding control, because when one is suffering, all they want is a pain they can control. Sometimes when someone is numb, they need pain to remind them that they are not dead, even though they feel as if they are. Cutting has nothing to do with intellectual ability. And while I would never wish anyone the amount of pain it takes to harm yourself, think about what you are saying and

 why do some dogs have curly tails

why do some dogs have curly tails

I think it depends on the breed. Also just genes they got to begin with. Many spitz breeds have curly tails. It becomes part of their breed characteristics. So it stays locked in their genes. Many breeds are bred to perform a certain task, such as Kangals. Not bred to be adorable but have curled tails, some uncurl and hold the tail up/curl when alert and others can't uncurl their tail (it would hurt them). The dogs were bred for a reason, not for specific looks traits. They look how they look as long as they do their job well is what matters. So some looks and physical traits are due to where the dogs live and the work they perform. is unique. They each have their own personality characteristics and special looks Б which is exactly why we love our purebred dogs! There are so many things

 why do werewolves howl at the moon

why do werewolves howl at the moon

This is an eclectic list of functions (and it doesn t even include my favorite: because they like to howl), but in no case is the moon involved as a motivating factor. So, again, where does the myth come from? Lopez offers a compelling theory here: Howling reaches a seasonal peak in the winter months, during the time of courtship and breeding; it is easy to see how the idea that wolves howl at the moon might have gained credence and played well on the imagination during these cold, clear nights when the sound carried far and a full moon lent an eerie aspect to a snowscape. This reminds me of the wolf moon of January, a name given to the full moon supposedly, and perhaps apocryphally, because of the hungry packs that once gathered outside Native American villages. If you attend a Super

 why tca cycle is called amphibolic pathway

why tca cycle is called amphibolic pathway

The Citric acid cycle (aka Kreb's cycle and Tricarboxylic acid cycle-TCA cycle) is a sequence of reactions, of an amphibolic overall nature (both catatbolic and anabolic), occurring in mitochondrial matrix that oxidizes acetyl moieties of acetyl-CoA. It is the final common pathway for oxidation of carbohydrate, protein and lipids as glucose, fatty acids and amino acids are metabolized to acetyl-CoA or intemediates of the cycle. The cycle starts with anabolic condensation of acetyl-CoA (3C) and oxaloacetate(3C), to yield citric acid (6C), the tricarboxylic acid of the cycle. In the subsequent catabolic reactions two molecules of CO are released (in the isocitrate dehydrogenase and a-ketoglutarate dehydrogenase complex steps) and oxaloacetate is regenerated, commencing another cycle. ...