In the 1800's in the UK (England), lots of factories were burning coal and wood which put up a bunch of smoke and soot in the air. Well, most of this had to come down somewhere. The trees in this area were a light greyish brown color originally. There were these light colored moths called peppered moths - they were whitish color with some light grey spots here and there. They blended in perfectly with the trees. There were other moths of the same species with different colors, mostly dark grey with whitish speckles, those were often eaten off the trees because they were easy to see. As the soot fell over many many years, it stained the trees a dark brown - blackish color. NOW, those dark grey moths blended in perfectly, and the light colored moths acutally started to die off because the birds could see them easier, so they ate them. Over time, the dark colored moths became more in numbers. Check out this cool site I use with my students: http://www.biologycorner.com/worksheets/pepperedmoth.html
Adaptation and speciation through natural selection
Black peppered moths and white peppered moths
Black peppered moths and white peppered moths
Peppered moths have Camouflage and Mimicry, the use of Camouflage is to hide from predators.
Peppered Moths eat the foliage of lime, birch, willow, hawthorn, rose and oak trees.
Peppered moths are so named for their appearance with their many black spots. The larvae thrive by eating the leaves from a variety of trees like the oak tree.
Peppered moths are so named for their appearance with their many black spots. The larvae thrive by eating the leaves from a variety of trees like the oak tree.
The example of peppered moths is not really different from Darwin's theory, it is the same concept. The only difference is that peppered moths live in the same habitat, where as Darwin's finches live in different habitats, which drove the evolution of their different beak shapes. The peppered moths have adapted to blend into their environment so they're not as easily caught.
Lizards
Lizards
birds couldn't see the dark-colored moths on the trees darkened by industry.
The peppered moth got its name due to it be pepper in color. There are some peppered moths that are completely black in color.