Acoustic Mimicry in Moths
Thursday May 31, 2007
Image of a bat and moth taken with a high-speed infrared camera. Credit: Wake Forest University
Researchers from Wake Forest University have shown that moths mimic the sounds ... Read More
Stages of Meiosis: Interphase
Saturday May 26, 2007
Microsporocytes in Interphase © John C. Glase
Meiosis is a two-part cell division process in organisms that sexually reproduce. Before a dividing cell enters meiosis, it undergoes a ... Read More
What are neurons?
Friday May 25, 2007
Nerve Cell © Dennis Kunkel
Neurons are the basic unit of nervous tissue. A neuron, or nerve cell, consists of two major parts: a cell body and nerve ... Read More
Asexual Reproduction in Sharks
Thursday May 24, 2007
Researchers report the discovery that asexual reproduction is possible in female hammerhead sharks.
These findings were a surprise considering that this type of reproduction had not previously been seen in ... Read More
Biology Games and Quizzes
Saturday May 19, 2007
Do you know what a group of frogs is called? Do you know the difference between genotype and phenotype? Do you know what hematopoiesis means?
Biology games and quizzes can be ... Read More
Architecture of the Liver
Friday May 18, 2007
The liver is the largest gland in the body and performs an astonishingly large number of tasks that impact all body systems.
The liver lies in the abdominal cavity, ... Read More
Hair Regeneration in Mammals
Thursday May 17, 2007
Scientists from the University of Pennsylvania School of Medicine have successfully induced hair regeneration in mice.
The researchers found that mouse skin, while in the process of healing, is very ... Read More
Virtual Frog Dissection Quiz
Saturday May 12, 2007
Northern Leopard Frog © Mike Lannoo (USGS)
Frogs have a very interesting anatomy. They have highly specialized structures, such as a long, sticky tongue which they use to ... Read More
Biology Games: Animal Names
Friday May 11, 2007
All animals have common names. These names may be different for the male, female, and young of a species. They may also be different for different groups of animals.
Common animal ... Read More
Gray Matter: The Cerebral Cortex
Friday May 11, 2007
The cerebral cortex is the layer of the brain often referred to as gray matter. The cortex is gray because nerves in this area lack the insulation that makes most ... Read More
Genetics Quiz
Saturday May 5, 2007
© Steve Berg
In the cross-pollination between a true-breeding yellow pod plant and a true-breeding green pod plant, where green pod color is dominant, what will the resulting ... Read More
What is the Pericardium?
Friday May 4, 2007
The pericardium is the fluid filled sac that surrounds the heart and the proximal ends of the aorta, vena cava, and the pulmonary artery.
The pericardium has several functions. It keeps ... Read More
Stages of Mitosis: Telophase
Thursday May 3, 2007
Onion cell in telophase. © The Entangled Bank
Mitosis, a form of cell division, enables organisms to grow and reproduce. Dividing cells go through an ordered series ... Read More

