New year's day is the Gregorian calendar the first day of New Year, beginning of a year. So today we for dot and " dawn = egg " concerned issue, the hope can be satisfactory in a new year, round reunion is round.
Caption: Beaming new year's day, the picture comes from Sohu net
Actually original idea and egg do not have new year's day relation, "Yuan " namely " only then " , "Dawn " be " day " , so " new year's day " be " initiative day " meaning. We take homophonic round egg, can think common egg carefully a bit out of round, often be an a circle, needle.
Explaining why the egg is not a circle before, we still make clear first what is the egg after all. The egg calls amnion egg on biology, the animal that will breed through amnion egg is amnion animal, today all crawl on the earth kind, avian with lactation kind it is amnion animal, include our mankind inside.
Caption: The structure of amnion egg, the picture comes from a network
Caption: Amnion animal is classified, the picture comes from Http://slideplayer.com
Is our mankind amnion animal? And have breed with amnion egg? I can not cheat you, subclass of the animal after the true animal subclass that just includes the mankind inside is mixed completes embryonic development process inside female body, do not need to lay eggs be delivered of the young directly however. Although do not lay eggs, but the protection that mammalian embryo still needs amnion, so we should be in amniotic fluid bubble one bubble.
Caption: 8 weeks big fetal in amnion, the picture comes from Webmd.com
Pull a bit far it seems that! Why does vertebrate want evolution to give amnion egg? To ascend land. Fish and amphibious kind lay eggs in water, so they leave all one's life not boiled water, also cannot live to land. To cast off the dependence to water, on the biscuit outside the embryo of vertebrate a carapace, had amnion egg then, but have,this is in on evolution history like milepost great sense, from now on later animal can each corners of thorough land.
Caption: Of Qi Si Xi recover from an illness graph, the picture comes from Vicki 100 divisions
Current and foregone the earliest amnion animal is to live in be apart from today the Qi Si Xi with the inchoate Carboniferous 340 million years ago (Casineria) , it also is the animal of the earliest unripe egg, belong to crawl kind. A lot of crawl kind the egg does not have strong calcic simple case, however the corneous case that a softness has tenacity, namely soft egg, the earliest egg is soft egg. The chorion of today's snake and lizard is soft, if chorion dies forcedly with respect to the embryo the egg is medium.
Caption: Soft carapace egg of the snake, the picture comes from Http://farm2.staticflickr.com
Caption: The incrustation egg of chelonian, the picture comes from Vicki 100 divisions
Those who experienced Carboniferous and the Permian is initiative and rise abruptly, creeping kind golden age was greeted in Mesozoic Era, dinosaur is among them delegate. Dinosaur also is unripe egg, their chorion is hard calcic simple case, paleontology home had discovered a large number of dinosaurian egg fossil in world each district, and the place that discovers dinosaurian egg fossil is most saves in our China Henan on the west gorge county, gross exceeds 40 thousand!
Caption: The fossil of a brood of dinosaurian egg that city of Jiangxi another name for Jiangxi Province discovers, film: Jiang Hong
Caption: Discover Yu Xixia county on the west gorge is giant chief body egg, film: Jiang Hong
On the west the dinosaurian egg fossil of gorge not only the amount is much, and volume is large, the biggest on the west gorge is giant length of chief body egg achieves 48 centimeters, it is foregone the biggest dinosaurian egg fossil. Is so big egg giant Xi foot certainly kind is dinosaur unripe? Still not be really. Xi foot kind dinosaurian egg shows a circle, with the football big, and on the west of gorge giant chief body egg is the dragon that steal an egg kind dinosaur is unripe.
Caption: Steal the model of the dragon that steal an egg of the egg, the picture comes from Vicki 100 divisions
Caption: Belong to the dragon that steal an egg kind Bei Beilong guards nest, the picture comes from a network
The dragon that steal an egg kind do not steal dinosaurian egg technically namely, it is the abhorrent thief that steal an egg! Actually this results from a misunderstanding, paleontology home is the earliest be in a dinosaurian den discovery steals egg dragon fossil, and the head of the dragon that steal an egg by tread down. Paleontology home of of course when thinking the dragon that steal an egg is to stealing an egg, was caught wearing, next by tread down head. The research later proves what be killed when den to the dragon that steal an egg is to protecting his actually, but they have the dinosaur of mother love most, can resemble even today's avian and same bend over lie incubative on den.
Caption: Bend over to go up to steal egg dragon incubatively in den, the picture comes from Http://static.squarespace.com
Caption: Incubative swan, the picture comes from Vicki 100 divisions
The dragon that steal an egg kind go up in incubative behavior with today's avian and special likeness, this is not accidental, because avian come by dinosaurian evolution namely, both having close connection. The appearance of bird egg is more consistent, it is an a circle, needle for the most part, the egg is this appearance. An a circle, pointed appearance is convenient and fixed, prevent an egg to boil everywhere fall.
Caption: An egg, an a circle, needle, the picture comes from a network
Tellurian is avian today breed is various, bodily form each different, produces egg is on size the difference is very big also. The ostrich that the biggest bird egg is Africa produces, the egg is 15 centimeters long, 12 centimeters wide, heft 1 kilogram; The hummer of South America produces the smallest bird egg, the egg grows 1 millimeter, wide 0.8 millimeter, weigh 0.5 grams, a small bean is so only big. Actually ostrich egg is not the bird egg with the greatest throughout history, the biggest bird egg is produced what once lived on Madagascar island like the bird, an egg elephantine a bird is 30 centimeters long, 21 centimeters wide, weigh 1.6 kilograms, be equivalent to many 100 egg.
Caption: Ostrich egg, the picture comes from Vicki 100 divisions
Caption: Ostrich egg (right) with quail egg (left go up) with the egg (left below) comparative, the picture comes from Vicki 100 divisions
Caption: Hummer egg (below) with the egg (go up) comparative, the picture comes from Photoshelter.com
Caption: Egg elephantine a bird (right) with the egg (left) comparative, the picture comes from Http://media.boingboing.net
Can unripe most the elephantine bird of curassow egg but history go up the biggest bird, it stands up be as high as 3 meters, weight 500 kilograms. Just eradicate to 17 centuries like the bird, they are not the light that be killed by the mankind, the dweller on contrary Madagascar island adores this kind of roc very much. The mankind does not catch the bird that kill an elephant, but eat egg elephantine a bird however, allow may you be the last of your line elephantine a bird finally. Today, still can buy the egg elephantine a bird that rises with fractional joining together to Madagascar island, an auction before a few years meets a the most complete egg elephantine a bird the high price that arsis gave 510 thousand RMB.
Caption: The type of build or figure that resembles bird and mankind is comparative, the picture comes from Causticsodapodcast.c
Caption: Resemble bird skeleton and egg, the picture comes from Vicki 100 divisions
Caption: The egg of simple look, the picture comes from Vicki 100 divisions
Caption: All sorts of eggs that have figure, the picture comes from a network
Egg elephantine a bird and ostrich egg are to slant of white, if you know white, gray, yellow only such pure lubricious egg is too inexperienced and ignorant, the degree Yuan Chao of profusion of bird egg colour crosses your imagination. In German Leisidu city has museum of egg of a bird, egg of 800 thousand birds was collected in museum. The color of bird egg can be divided into kinds of white, palm, La San is big department, become 6 kinds in order to have decorative pattern branch again. The bird egg of those white is to facilitate hen identifies, and the bird egg that there is figure on chorion is helpful for concealmenting.
Caption: The decorative pattern egg of gull of become known head, be helpful for concealmenting, the picture comes from Vicki 100 divisions
Caption: The Difuni of bluebird egg is blue, the picture comes from a network
Caption: Zuo of spot female singer and its blue egg, the picture comes from a network
The existence of simple look and decorative pattern egg is good understand, so what circumstance is the Ni La of Fu of the base of a fruit of heart of capture myriad girl? Pure blue egg or egg of blue decorative pattern is in avian in not scarce, Zuo of female singer of crow tit of bluebird, grey larynx, spot lays blue egg. To blue this plants the egg to exist magically, the explanation that birdman gives out is to be delivered of the hen fitness that jumps over blue egg to had been jumped over, male bird can throw more energy to help hen foster offspring, for the sake of passing on oneself gene better.
Creeping kind and avian be unripe egg, our lactation kind different, we use more advanced viviparity. Actually lactation kind in the kind that also has unripe egg, that belongs to the echidna of original animal subclass, former echidna and platypus namely. The species of these 3 strange flower lives in Australia, it is the vivid fossil of one hundred percent. It is with platypus exemple, firstly secondary the 1 egg that grows 1.6 centimeters to 3, the egg passes 14 days of hatch, the small platypus of pip relies on lap to feed secretion of mom mammary gland to be brought up. The existence of the original animal subclass of unripe egg proved lactation kind be by crawl kind evolution comes, be of unripe egg before our remote ancestors.
Picture: The species of original animal subclass, the picture comes from Vicki 100 divisions
Caption: Magical platypus, the picture comes from Vicki 100 divisions
Caption: Incubative platypus, the picture comes from Animaldiversity.org
Above the history that we reviewed an egg with very simple way, this is the way of the most miraculous life be pregnant with that nature conception comes out! Our mankind early realizes the nutrient value of the egg, contain a lot ofprotein, cholesterol, amino acid to reach a variety of elements among them, be absorbed very easily by human body and use.
Caption: We most the egg of constant edible, the picture comes from Http://freefoodphotos.com
Rasorial egg has made the mankind's commonnest provision, the cooking means assemble to the egg the wisdom of complete mankind, our ancestor taking money people was to reach brand-new height more, egg of tea egg, salty duck's egg, preserved egg, wool becomes the cate on table in succession.
Caption: Tea egg, the picture comes from a network
Caption: Preserved egg (go up) with salty duck's egg (below) , the picture comes from a network
Want to wish everybody new year's day is happy finally, in a new year the heart thinks the thing is become, the body is in good health.
PS: Breed birds kind egg and feral and avian egg nutrition value are same, so everybody does not buy feral and avian egg, protect environment together, let those birth the egg egg in afield forest people can hatch becomes lovely little life.
Article copyright puts in Shanghai nature 's charge museum is all and textual publish go up in date of community of museum of Shanghai natural history, link: Https://mp.weixin.qq.com/s/8FOU9TUxXONL3GSrAchAZg
