Biology (general)
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Tickling may induce pleasurable sensations in some people, and outright fear in others. This pleasure-pain duality affects how the body manages stress. more...
Tickling – Perception or Physiology?
Although tickling is a physical stimuli passed along neural pathways, how the brain perceives tickling seems almost as important as the reflex sensation itself. more...
The science of tickling is complex. The brain processes pleasant tickle stimuli along with sensations of pain from other neural pathways. more...
Sweetest Day 2009 is a time to show appreciation for loved ones. But when love is lost, the shock induces severe medical and chemical effects on the heart and body. more...
Genetic research has often been used to find causes of disease. But what happens when a genetic abnormality is linked to criminal behavior? more...
Jehovah's Witnesses and Blood Transfusions
Bioethics deals with moral issues in medicine, but sometimes doing what is right creates more problems for the physician-patient relationship than doing nothing at all. more...
All feature articles in Biology (general)
By: Kenneth Rosen
Information about DNA abounds today, but few are aware that it was originally discovered in the 1860s, many years before its biological function was ever determined. more...
Functions and Structure of Ribosomes
By: Bridget Coila
Ribosomes, which can be free floating in the cell or attached to endoplasmic reticulum, carry out the steps of protein synthesis in the cell. more...
What is the Cell Wall of a Plant Like?
By: Anay Bose
The cell wall is a rigid layer of polysaccharides enclosing the intercellular substance of a cell. It maintains the shape of the cell and serves as a protective barrier. more...
How Bioluminescence and Chemiluminescence Work
By: Bridget Coila
Animals, plants, fungi and microorganisms all have members who produce bioluminescence, a natural glow in the dark mechanism that creates light from a chemical reaction. more...
Mechanisms Used by Extremophiles
By: Bridget Coila
Extremophiles come in many different types, preferring widely varied conditions. Often existence in extreme environments requires extreme life adaptations. more...
Volunteer Opportunities in Biology
By: Bridget Coila
Amateur biologists from current students to adults long out of school can find ways to participate in the science of biology as a volunteer. more...
Cellular Respiration Explained
Cellular respiration is the biochemical breakdown of a chemical substrate, such as glucose sugar, or fat, through oxidation. more...
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