Biology Online is a Biology blog and dictionary site that provides up to date articles on the latest developments in biological science. The Biology Online Dictionary is a completely free and open dictionary with over 60,000 biology terms. It uses the wiki concept, so that anyone can make a contribution.
Author: biology-online

5 Unexpected Activities that Release Endorphin

Endorphin is one of the natural “happy” chemicals released by our bodies. This chemical which is secreted by our brains is responsible for helping us relieves stress, anxiety, and allows us to have higher tolerance for pain. Sometimes called as the natural morphine, endorphin affects our pain and pleasure perception.

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Aeroallergen Monitoring in Canada

As I mentioned in my last blog, the study of aeroallergens depends highly on having data.  In order to have data, we need to obtain samples of outdoor air, and analyze them to identify and quantify each type of pollen and fungal spore particle collected.  We need to do this on a continuous basis, at set intervals, at multiple locations, for many years, to obtain a data set large enough to be able to study aeroallergen seasonal behaviour. (more…)

Update Regarding The Urban Scientist, Dr. Danielle Lee (DNLee)

Biology Online would like to provide an update regarding our interaction with Dr. Danielle Lee, otherwise known as The Urban Scientist or DNLee.

A few weeks ago, a recently hired employee (not the site’s editor) representing Biology Online was responsible for a very offensive email sent to Dr.Lee. You can view our original apology written immediately after the incident here: https://www.biology-online.org/biology-forum/about34647.html (more…)

An Introduction to Aeroallergens

Pollen is a microscopic grain discharged from the male part of a flower or from a male cone that can fertilize the female ovule.

Plants have evolved to have their pollen be transported either by the wind, or by insects or other animals. Insect and animal pollinated plants are not considered to be aeroallergens, not because people aren’t allergic to them, but because the pollen from those plants are not designed to be distributed in the air (more…)

Why Are There So Many Kinds of Plants?

Welcome to guest blogger, USF Botany Professor Fred Essig

Estimates vary, but there are about 300,000 named species of plants, with more being discovered daily.  There may ultimately be as many as 500,000, if and when all are catalogued. Some botanists include some 10,000 species of red and green algae in such estimates, but others include only the land plants. Either way, it’s a lot. (more…)

The Real Causes of Obesity?

A very warm welcome to noted human performance expert and Mayo Clinic physician, Dr. Michael Joyner

Is Obesity Research a Dead End?

Obesity is a big public health problem. Currently about two-thirds of American adults are either overweight or obese. While this rate appears to be stabilizing, it is also likely to have a big impact on early mortality and be an overall drag on public health statistics [MJJ1] in the United States.  (more…)

Aerobiology and Allergies

Welcome to guest blogger,  Aerobiology researcher Frances Coates.

Asthma and allergies are becoming more and more prominent in society and outdoor allergens like ragweed and birch take their toll on the economy and those who have to deal with them.  A report from Health Canada indicates that asthma is one of the most prevalent chronic conditions affecting Canadians, and since this is probably true of most countries, it explains why research in this field has such far reaching implications.  (more…)

Nuts About Nudibranchs

Welcome to guest blogger, marine biologist Sam Craven, from Mad As A Marine Biologist.

As a marine biologist and a diver I feel incredibly privileged to have seen many of the delightful examples of life that the most biodiverse ecosystem on our planet, the coral reefs, have to offer, but nothing has kept by attention and enthusiasm as much as the group of shell-less molluscs, the nudibranchs. (more…)

“Do Big Viruses Really Make You Sick?”

Welcome to guest blogger, noted biologist Alan Cann

For most of my research career, I worked on viruses with small genomes, such as poliovirus and HIV. For me, the attraction of these viruses is that it is easier to understand all the interactions that go on within a small genome than with an unfeasibly large genome such as that of a cell.

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