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Frogs are a species of amphibian. In recent years, there has been a decline in the numbers of amphibians worldwide.…
Frogs are a species of amphibian. In recent years, there has been a decline in the numbers of amphibians worldwide. This decline is thought to be caused by many things....
Mountain pine beetles are important to the Western United States. They have a very special life cycle that includes staying…
Mountain pine beetles are important to the Western United States. They have a very special life cycle that includes staying “supercool,” or dormant, for most of their lives. The scientists...
Mountain pine beetles are important to the Western United States. They have a very special life cycle that includes staying…
Mountain pine beetles are important to the Western United States. They have a very special life cycle that includes staying “supercool,” or dormant, for most of their lives. The scientists...
Animals play an important role in maintaining the health of our natural environment. It is important to know the status…
Animals play an important role in maintaining the health of our natural environment. It is important to know the status of different kinds of animal populations, both now and into...
Animals play an important role in maintaining the health of our natural environment. It is important to know the status…
Animals play an important role in maintaining the health of our natural environment. It is important to know the status of different kinds of animal populations, both now and into...
Many changes have occured in the Rio Grande since the 1940s that have created a river that is deeper and…
Many changes have occured in the Rio Grande since the 1940s that have created a river that is deeper and faster. This has created problems for the Rio Grande silvery...
Test your knowledge on ecosystems, vegetation, and erosion.
Test your knowledge on ecosystems, vegetation, and erosion.
This FACTivity will represent the methods the scientists used to collect vegetation data in the study. The question students will…
This FACTivity will represent the methods the scientists used to collect vegetation data in the study. The question students will answer in this FACTivity is: How well does sampling work...
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United…
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United States from Eastern Europe in the early 1900s. To control the...
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United…
In the Western United States, spotted knapweed is one of the most widely found nonnative plants. Spotted knapweed was brought to the United States from Eastern Europe in the early 1900s. To control the...
Primary forests are usually rich in biodiversity. Biodiversity is the variety of life and life processes. When a natural ecosystem…
Primary forests are usually rich in biodiversity. Biodiversity is the variety of life and life processes. When a natural ecosystem is diverse, it has a variety of living organisms. In...
The scientists were interested in discovering whether the Pacific tree frog population might also be affected by the presence of…
The scientists were interested in discovering whether the Pacific tree frog population might also be affected by the presence of nonnative trout, similar to the way these trout had affected...