By: Joyce V Harrison
In May 2010, Nashville flooded. In May 2011, the cicadas arrived. Remember the sound in those old sci-fi movies that signaled the landing of a space ship on earth? You can hear it now in Music City, but you won’t see any flying saucers...
Insect profiles: Damselfly
By: Regina Tillman
There are hundreds and hundreds of known species of the damselfly. This insect is found flying and living all over the world near shallow waters like ponds, lakes, rivers, and streams. Similar to the dragonfly, the damselfly is brightly colored with four large wings that...
By: Amelia Emery
The channel catfish is a native catfish species of North America. Native to the United States, east of the Rocky Mountains and naturally occurring in the Gulf states such as Texas, the channel catfish has been introduced to other states as well as other countries...
By: Amanda Mittra
The relationship between timothy grass and hay fever is almost undeniable. There is a direct influence of timothy grass upon people who are prone to allergies such as hay fever. While it may be one of the best sources of fodder for grazing animals, especially...
By: Fate Tertium
Often seen hovering over ponds, rivers and marshes, damselflies are the flickering jewels of the insect world. But don’t let their shimmering beauty fool you; among insects, they are dangerous predators, with large compound eyes that provide high visual acuity and powerful jaws that...
By: Norman Green
Damselflies are insects belonging to the order Odonata, which also contains dragonflies. Often dragonflies are mistaken for damselflies and vice versa, but damselflies have their own sub-order, Zygoptera ( meaning ‘paired wings’) and there are distinct differences between the two groups of insects...
By: Rex Trulove
Skeletonweed (Chondrilla juncea) is classified as a noxious weed in many areas, though it is not a plant native to the United States. Difficult to eradicate, this perennial spreads well and can be locally abundant. There are relatively few leaves on each plant, and they...
By: Julie Thomas-Zucker
The differences between free living and parasitic protozoans include temperature change, movement, where it lives, and its ecological impact. Protozoans are bacteria. Some bacteria help to break down organisms in the soil and compost. They help with ecology. They also are food for fish and...
An overview of the defense system of bees
By: Cotton Lee
Bees have several options available to them when it comes to the matter of defense. Some species of bees have more types of defense than others, depending on relevant predation in the area. Bees have several areas where one might say they need, and indeed...
Classic examples of evolution: Genetics underlying peppered moth color identified
By: Alicia M Prater PhD
Peppered moths (Biston betularia) have long been used as an example of natural selection leading to changes in populations. These white and dark colored moths existed mainly in light colored forms prior to the industrial revolution. Once sooty air started to invade their environment in...

 

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