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Regina's Biology Blog April 2008 Archive

By Regina Bailey, About.com Guide to Biology since 1997

Dinosaurs Linked to Birds

Saturday April 26, 2008
Molecular analysis of a dinosaur protein has linked dinosaurs to modern birds. These findings, published in the journal Science, show that dinosaurs share a common ancestor with chickens and ostriches. Researchers ... Read More

Know Your Frog Anatomy

Friday April 25, 2008
Northern Leopard Frog Credit: Mike Lannoo (USGS) Frogs have a very interesting anatomy. They have highly specialized structures, such as a long, sticky tongue. They also have other structures ... Read More

Biology 101

Friday April 25, 2008
What is biology? Simply put, it is the study of life. From the very small algae to the very large elephant, life has a certain wonder about it. With that in mind, ... Read More

Larger Hippocampus Means Better Memory

Saturday April 19, 2008
MRI Brain Scan Credit: NIH Research with Alzheimer's patients has linked greater cognitive ability and memory retention to brain size. In studies, researchers have performed autopsies on the brains ... Read More

What is the Correct Scientific Name?

Saturday April 19, 2008
Binomial nomenclature involves organizing an organism's scientific name into a combination of two terms. These terms are the genus name and the species. Both of these terms are italicized and the ... Read More

Three Domain System

Thursday April 17, 2008
The Three Domain System is a system for classifying biological organisms. This system has replaced the Five Kingdom system that became popular after the late 1960's. As scientists learn more about organisms, ... Read More

Nasal Spray Anthrax Vaccine

Saturday April 12, 2008
Sterne strain of Bacillus anthracisCredit: Janice Haney Carr/CDC Researchers have developed a nasal vaccine that protects against anthrax. A vaccine for anthrax already exists, but can only be delivered ... Read More

Show What You Know About Viruses

Thursday April 10, 2008
Influenza Virus ParticlesCredit: Dr. F. A. Murphy/CDC Viruses are unique. They have been classified as both living and nonliving at various points in the history of biology. ... Read More

When in Trouble, Young Ants Play Dead

Thursday April 10, 2008
When under attack, young fire ant workers play dead as a defense mechanism. Researchers made this discovery while studying the fire ant species Solenopsis invicta. The study revealed that the age of ... Read More

Are Some Trans Fats Good For You?

Saturday April 5, 2008
Everyone knows that trans fats are bad for you, right? Researchers from the University of Alberta contend that not all trans fats are bad for you. Unlike hydrogenated trans fat produced ... Read More

Test Your Knowledge of Biology

Friday April 4, 2008
Can you identify the following cell structure? Nucleus Golgi Complex Ribosome Mitochondrion © Dennis Kunkel Do you know what a group of frogs is called? Do you know the ... Read More

From Algae to Fuel

Wednesday April 2, 2008
Algae Accumulation, Kesterson National Wildlife RefugePhoto courtesy USFWS With the rising gas prices, we are all feeling a crunch at the gas pump. Well, there is good news ... Read More

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