I am an Ultra-Conservative, Alpha-Male, True Authentic Leader, Type "C" Personality, who is very active in my community; whether it is donating time, clothes or money for Project Concern or going to Common Council meetings and voicing my opinions. As a blogger, I intend to provide a different viewpoint "The way I see it!" on various world, national and local issues with a few helpful tips & tidbits sprinkled in.
Which came first, the chicken or the egg?
British scientists claim to have solved the scientific, philosophical mystery
It is an age-old riddle that has perplexed generations: Which came first, the chicken or the egg?
Now British scientists claim to have finally come up with the definitive answer: The chicken.
The scientific and philosophical mystery was purportedly unraveled by researchers at
The scientists found that a protein found only in a chicken's ovaries is necessary for the formation of the egg, according to the paper Wednesday. The egg can therefore only exist if it has been created inside a chicken.
The protein speeds up the development of the hard shell, which is essential in protecting the delicate yolk and fluids while the chick grows inside the egg, the report said.
"It had long been suspected that the egg came first but now we have the scientific proof that shows that in fact the chicken came first," said Dr. Colin Freeman, from Sheffield University's Department of Engineering Materials, according to the Mail
The protein had been identified before and it was linked to egg formation, but by examining it closely we have been able to see how it controls the process," he said.
First, I think the research team is making an error in logic. Assumption that today is the same as in the beginning.
The premise is that in chickens TODAY, they contain a protein found only in a chicken's ovaries that is necessary for the formation of the egg, therefore, only exists if it has been created inside a chicken.
They are looking at chickens today, as we know them and not the first evolutional species of chicken like creatures. They are making as final conclusion based on how chickens are today.
What if neither came first, but it was some other creature that became a chicken like creature either from mutations or through the evolutionary process and was able to lay an egg. Maybe it gave birth to live creatures, but developed egg laying abilities later.
I know it is Sci-Fi, but think of the 1997 Alien Resurrection movie where the queen lays eggs, but later has a vaginal birth. Yes, I know that is
If they now turn the research over to platypus as the only mammal to lay eggs, does it hold true for ALL mammals then?
What about asexual reproduction? What if that was more common at the start of life, but dropped out of favor do to natural selection.
As a general rule, animals cannot reproduce asexually. However, there are exceptions.
Amoebas and other single-celled organisms reproduce asexually, being too small to have gender.
Certain larger animals may reproduce asexually through either:
•parthenogenesis under certain circumstances (that is, reproduction via self-cloning),
•gynogenesis (via the catalyst of a male nearby which does not actually fertilize the eggs).
Whiptail lizards, Aphids, some bees wasps and hornets, some fish and water fleas reproduce by parthenogenesis. Komodo Dragons, some sharks, some snails do as well.
Parthenogenesis has been laboratory induced in some species, such as urchins and turkeys, but this does not occur in the wild.
Sperm in all animals originated 600 million years ago
Gene for reproduction has remained unaltered throughout evolution, study says
A gene responsible for sperm production is so vital that its function has remained unaltered throughout evolution and is found in almost all animals, according to a new study. The results suggest the ability to produce sperm originated 600 million years ago.
The gene, called Boule, appears to be the only gene known to be exclusively required for sperm production in animals ranging from an insect to a mammal.
"Our findings also show that humans, despite how complex we are, across the evolutionary lines all the way to flies, which are very simple, still have one fundamental element that's shared," said Eugene Xu, assistant professor of obstetrics and gynecology at Northwestern University Feinberg School of Medicine.
Prior to the new findings, scientists didn't know whether sperm produced by various animal species came from the same prototype. In many evolution scenarios, things develop independently. As an example, birds and insects both fly, but the wings of each originated and evolved completely independently.
For the study, Xu searched for and discovered the presence of the Boule gene in sperm across different evolutionary lines: human, mammal, fish, insect, worm and marine invertebrate. The search required sperm from a sea urchin, a rooster, a fruit fly, a human and a fish.
Source and Full Story: MSNBC