A tsunami spawned by an earthquake in the Indian Ocean has caused massive destruction in Asia and East Africa. Wild animals however, have been able to survive. Did they sense ... Read More

Temperate grasslands are areas of open land with very few trees. Unlike savannas, these grasslands are located in cold climate regions and receive less precipitation on average.

How is gender determined in organisms that do not have sex chromosomes? Gender is determined in some species such as ants, wasps, and bees by parthenogenesis. For information on additional ... Read More

Christmas trees, wreaths, and other holiday greenery can be tough on allergy and asthma sufferers. The American Academy of Allergy, Asthma, and Immunology has tips on how to survive the ... Read More

Scientists say that pollution in the Potomac River has led to hormonal and chemical changes in smallmouth bass. These changes have caused male smallmouth bass to produce eggs.

Mitosis is a phase of the cell cycle in which the genetic material from a parent cell is divided equally between two daughter cells. Test your knowledge of mitosis. Take ... Read More

Savannas are areas of grasslands with dispersed singular or clusters of trees. Grasslands are located on every continent with the exception of Antarctica.

Researchers have found that various plants are blooming earlier than they have in years past due to an increase in average annual temperatures.

The tundra biome is characterized by extremely cold temperatures and treeless, frozen landscapes. There are two types of tundra, the arctic tundra and the alpine tundra.

Scientists have decoded the 1 billion letter DNA code of the chicken genome. It has also been discovered that humans and chickens have related genes.

The hippocampus is the part of the brain that is involved in memory forming, organizing, and storing. It is particularly important in forming new memories and connecting emotions and senses, ... Read More

Apoptosis, or programmed cell death, is a naturally occurring process in the body. It involves a controlled sequence of steps in which cells signal self termination.

Do you know which type of immunity protects the body from its own cancerous cells? Test your knowledge of the immune system. Take the Immune System Quiz!

Researchers in Texas received approval from the FDA for clinical trials of a ricin vaccine.