Environment and Heredity: Birds & Dinosaurs
Humans have invented a variety of instruments to monitor the health of ecosystems. However, in some cases we can examine change in the habitat without instruments by studying the presence and behavior of birds.
The article starts by explaining, "What makes a good indicator?". It then looks at indicators that can be measured by birds and bird populations: habitat quality, pollution, biodiversity, and disease outbreaks.
When it comes to making noise, both parrots and humans rely on extremely specialized vibrating organs in their throats. Now scientists at Indiana University and Leiden University in the Netherlands have shown for the first time that parrots, like humans, also can use their tongues to craft and shape sound.
Did Dinosaurs Really Have Feathers?
At least one entire class of dinosaurs seems to have had feathers -- including velociraptors, and maybe even T. rex. Find out how we know, and how we even know what color some of them were!
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Dinosaurs have been getting slowly more birdlike for decades—perhaps not in mainstream depictions, but at least in the minds of paleontologists. This resource looks at the evidence.
Since 1983, hundreds of such fossils— most of them from China—have reinforced the idea of warm-blooded, active, feathered dinos. The time of the dinosaur's dominance, from the end of the Triassic to the final catastrophic meteor strike, was not the Age of Reptiles. It was the Age of Big Weird Feathered Things.
The Puffin Colony illustrates the revitalization of endangered environments.
This blog post from the International Science Teaching Foundation goes in depth into the dinosaur - bird - feathers connection, looking at the evolution of feathers and other evidence that dinosaurs still walk (or fly) among us.
Why study birds? One reason is to help us.
Researchers at the University of Wisconsin are studying why birds can migrate hundreds of miles with no sleep, and see if that research can help humans who are sleep deprived..
For the best primary source on this subject, take a look at the Origin of the Species by Charles Darwin.
Celebrate Darwin's birthday by adapting resources at Darwin Day. The site emphasizes verifiable scientific knowledge.
The nature-nurture debate and other issues, revolving about heredity, has and will continue to occupy a stage for many years.
Young folks are typically quite intrigued by this topic, and it is misleading in a study of the environment not to mention this issue, at least.