Article describing the types of stressors faced by plants living in wetlands areas and adaptations they have made in order to survive. (Published: January 12, 2009)

Article discussing the types of pests that can affect garden plants (insects, mites, disease, weeds), how to determine the problem, ways of dealing with it, and prevention strategies. It also looks briefly at pest management on a farm....

Article describing the scope of the problem of overfishing in the ocean and in fresh water bodies around the world. Adverse effects of this practice on both natural and human systems, and efforts to contain it are detailed. (Published:...

Article describes the different types of symbiosis, some of which are of mutual benefit, and others not. It also explains the differences between endosymbiosis and exosymbiosis, where one organism lives either inside or else upon the...

Defines inertial and gravitational mass, their scientific history, formulas used in their calculation, the definition of weight, units used for mass, and mass as perceived in the theory of special relativity.

Definition of herbicides, how they are used, their damage to the environment and to ecology, consequences to human health, use around the world, and the three classes of herbicides.

Article discusses the science of epigenetics, where gene activity can be changed by factors other than genetic code, for example, by environmental pollutants. (Published: August 22, 2011)

Explains what gasoline is and the different terms used for it, describes how it is produced, and what effects different properties of a gasoline can have on its performance. Also discusses how the composition of gasoline varies depending...

A large collection of scientific articles, news items, and images on a wide range of topics in the field of conservation biology.

Describes the physical features of different cacti, the variety of habitats where they can live, their distribution, evolution, taxonomy, and conservation status. (Published: January 10, 2011)

A discussion of the structure and types of amino acids, and of how they combine to form proteins. (Published: October 16, 2010)

The ways in which plants have adapted through evolution in order to survive in a desert environment are described in this article. Getting water and retaining water are key to their survival, including protecting themselves from animals...

The evolution of amphibians from prehistoric days is described, and the challenges they face when living in a desert environment, of which the ability to reproduce is the greatest. How they manage to survive in a desert is explained in...

A biography of Thomas Henry Huxley, a contemporary of Charles Darwin, and a strong supporter of his theory of evolution.

Defines the term species and the origin of the concept. Provides estimates of numbers of species in different biological categories, explains what endangered species are, and what ring species are. (Published: May 26, 2010)

The complete original text of On the Origin of Species by Charles Darwin.

A collection of articles on offshore oil. Some of the topics covered include the Deepwater Horizon oil spill, oil exploration and oil reserves, oil drilling, and the history of oil and gas.

Explains what noise pollution is, sources, the effects of noise propagation, the impact on health and on human and animal behaviors, strategies for reducing the effects of noise, and standards in place for regulating noise pollution....

Explains what nickel is, ways it is used, how it is produced, how it gets into the environment and into our bodies, and the health effects of exposure to nickel. Also discusses how to reduce the risk of exposure. Has links to additional...

Scientific article explaining what natural selection is, and how it manifests itself through genetics and from generation to generation. Natural selection is compared to genetic drift, both of which cause evolution to occur. The limits...

Article discusses the impact of light pollution on the health of human beings as well as on plants and wildlife. (Updated July 18, 2012)

Detailed information about the hydrology and the geography of the Gulf of St. Lawrence. Discusses water quality, aquatic species, and some of the ecoregions that surround the St. Lawrence Seaway, including lowlands and forests....

A collection of articles on the state of our natural resources and the industries that rely on them, e.g., forests, bodies of water, fisheries and aquaculture, national forests. Many of the articles look at threats to natural resources...

Article describing the parts of a cell. Includes chart listing the main parts of a cell and their definitions. Discusses some of the ways a cell can become damaged. (Published: February 28, 2008)