Darwin, the father of evolution, had postulated that the species evolve constantly to adjust to the changing environment and climatic changes but this change is gradual in nature and takes place over thousands of years. But man is proving him wrong. Being an expert killer backed by technical advanced equipment, man is bringing rapid changes which are perceptible within much shorter time. Man is super predator and its peculiar hunting preferences are forcing many species particularly of fish and large sized land animals to evolve at a rapid pace than the nature would have done. There are stories of attacks… Read More »Of all the predators Man is super predator!!!
In the preface to his book named “Mutual Aid: A factor of evolution”, Russian Anarchist, Peter Kropotkin writes ” Two aspects of animal life impressed me most during the journeys which I made in my youth in Eastern Siberia and Northern Manchuria. One of them was the extreme severity of the struggle for existence which most species of animals have to carry on against an inclement Nature; the enormous destruction of life which periodically results from natural agencies; and the consequent paucity of life over the vast territory which fell under my observation. And the other was, that even in… Read More »Altruism and Aggression
Scientists have marked the time since the Earth began its life. They have divided it into different Epochs, Periods, Eras and Eons progressively in increasing time groups. We are living in the following division of time. Eon: Phanerozoic Era: Cenozoic Period: Quaternary Epoch: Holocene Holocene epoch began roughly 11700 years back and continues till present. United States Geological Survey (USGS) has divided this time into three ages namely Greenlandian: 11700 to 8326 years ago Northgrippian: 8326 to 4250 years ago MEGHALAYAN: 4250 to present date MEGHALAYAN age marks the time when a mega drought devastated civilizations across the world, including… Read More »We are living in the Meghalayan Age!!
Human eye is a very complex structure. It can distinguish about 10 million colors. There are rod and cone cells in the retina which allow conscious light perception and vision including color differentiation and the perception of depth. According to the evolution theory of Darwin, the living things evolved from simple to the the complex through gradations. So evolution of the eye poses a challenge to the Darwin’s theory because eye consists of many parts intricately connected to each other. The critics argue how could something so complex, they argue, have developed through random mutations and natural selection, even over… Read More »Human Eye
When Bejamin Franklin coined this advice “Early to bed, early to rise”, perhaps he did not have teens in his mind. Also back then in his days, the pressure of schooling was not much. Even in our times, life was non competitive and relaxed. This is not the case today. Kids began going to school very early on. It has been found that schools which start early morning, teens are not fresh. They find themselves tired and sleepy. Now the science has begun to unravel the chemistry behind the sleep. Our bodies follow a rhythmic cycle of 24 hours duration.… Read More »Sleep deprived school teenagers
The more I watch the nature closely and more I go through the literature, it is becoming clear how shallow is our knowledge of the world around us which the God has created. Sometimes I become more and more confused and become awestruck when some mystery of nature becomes clear to me. As we know that living things are related to one another at some stage or other during evolution though they must have diversified at some period of time but at least some basic properties resemble. By the end of January and February, one can notice that Pipal trees… Read More »Distant Relatives
Charles Darwin’s work on the evolution theory is akin to the Laws of Motion by Newton. They stood like indestructible rocks for several decades. Yet as the new evidence gathers, chinks or limitations in these laws have been becoming visible. Einstein came and with his theory of relativity, made the laws of motion into approximation of the true laws at lower speeds. These laws breakdown and cannot explain phenomena at the extremities at both ends, at the sub atomic level as well as the parsec levels. Not only that, it is now doubted that Einstein’s theories which are based on… Read More »Dr. Stephan Gould Seems to be right
When we observe the trees and plants around us, we find that even the plants of the same species bear different sizes and shapes. In fact no two trees are alike even if they are growing near one another. This is the result of the intense competition and many traits that trees have to face and acquire. Every tree tries to reproduce to propagate its lineage. For this it produces seeds. But this is not the end of the story. The seeds have to be broadcast away from the tree preferably to a place where the parent tree does not… Read More »The Frustration Principle
There have been so many attempts to understand the human behavior, yet it refuses to come into the grasp or to follow some universal formula. Wise men started to understand it with animals (we being one of them) and the father of Evolution , Charles Darwin, came up with the formula “The species always compete for the resources and those who the fittest among them survive and ready themselves for another competition”. He called it survival of the fittest. It is the nature’s way of weeding out the weaker among the species. This is the way all living beings have… Read More »Evolution of Living Beings
Microbes may be very small in size but their sheer numbers and remarkable adaptability to the existing climates is astounding. The word microbe is derived from micro-organisms meaning they are so small that they cannot be seen with naked eyes. A microscope is required to see them. But these tiny organisms are so active that they can bring about mammoth changes into the environment in which they live. Most of the chemical changes on the earth are brought about by these microorganisms. When the earth first formed, the atmosphere consisted only of carbon dioxide and water. Due to this iron… Read More »Mighty Microbes !!