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 Human Intelligence Secrets Revealed by Chimp Brains   @ livescience

chimpanzee 250Despite sharing 98 percent of our DNA with chimpanzees, humans have much bigger brains and are, as a species, much more intelligent.

Now a new study sheds light on why:

  • Unlike chimps, humans undergo a massive explosion in white matter growth, or the connections between brain cells, in the first two years of life.

palmar-grasp-reflex-smFrom: Listverse

It doesn’t matter what the color of your skin is or where you were born. It doesn’t matter if you’re rich, poor, young, elderly, sick, healthy, or unique. Everyone in the world holds an inherent set of instinctive behaviors. Some of the behaviors include a collection of reflexes. Scientists continue to examine the purpose of these instincts and develop hypotheses on their function. Many of the instincts remain an evolutionary mystery. For this article I have focused on reflexes in adults and left out the common primitive reflexes.

A primitive reflex is displayed by normal human infants and not neurologically intact adults. Some examples include the Palmar grasp reflex, which is the tendency for babies to close their hand around anything that strokes the palm. The swimming reflex occurs if you place a small infant in water. In response they will begin to paddle and kick. Up until the age of four months, an infant will turn its head towards anything that strokes its cheek or mouth. This is known as the rooting reflex and is used to assist in breastfeeding.

Figure 1.  History of life on earth
History of life on earth.

From: National Center for Biotechnology Information

Cells are the structural and functional units of all living organisms. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, or have many cells—an estimated 100,000,000,000,000 cells! Each cell is an amazing world unto itself: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Even more amazing is that each cell stores its own set of instructions for carrying out each of these activities.

Cell Organization

Before we can discuss the various components of a cell, it is important to know what organism the cell comes from. There are two general categories of cells: prokaryotes and eukaryotes.

Timeline of evolution

Summary of ages

 

 

 

 

 

 under construction

 

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Evolution and Ages

Timeline of evolution Summary of ages            under construction  

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What is a cell?

What is a cell?

Click to view larger image History of life on earth. From: National Center for Biotechnology Information Cells are the structural and functional units of all living organisms. Some organisms, such as bacteria, are unicellular, consisting of a single cell. Other organisms, such as humans, are multicellular, or have many cells—an estimated 100,000,000,000,000 cells! Each cell is an amazing world unto itself: it can take in nutrients, convert these nutrients into energy, carry out specialized functions, and reproduce as necessary. Even more amazing is that each cell stores its own set of instructions for carrying out each of these activities. Cell Organization Before we can discuss the various components of a cell, it is important to know what organism the cell comes from. There are two general categories of cells: prokaryotes...

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Top 10 Human Reflexes and Natural Instincts

Top 10 Human Reflexes and Natural Instincts

From: Listverse It doesn’t matter what the color of your skin is or where you were born. It doesn’t matter if you’re rich, poor, young, elderly, sick, healthy, or unique. Everyone in the world holds an inherent set of instinctive behaviors. Some of the behaviors include a collection of reflexes. Scientists continue to examine the purpose of these instincts and develop hypotheses on their function. Many of the instincts remain an evolutionary mystery. For this article I have focused on reflexes in adults and left out the common primitive reflexes. A primitive reflex is displayed by normal human infants and not neurologically intact adults. Some examples include the Palmar grasp reflex, which is the tendency for babies to close their hand around anything that strokes the palm....

Read more

Human Intelligence Secrets Revealed by Chimp Brain…

Human Intelligence Secrets Revealed by Chimp Brains

 Human Intelligence Secrets Revealed by Chimp Brains   @ livescience Despite sharing 98 percent of our DNA with chimpanzees, humans have much bigger brains and are, as a species, much more intelligent. Now a new study sheds light on why: Unlike chimps, humans undergo a massive explosion in white matter growth, or the connections between brain cells, in the first two years of life.

Read more