The DNA and Aging

  By studying a premature aging disorder called Werner syndrome, researchers may have uncovered a key driver of normal human aging: loose, disorganized bundles of DNA. The findings were published in Science this week. People with Werner syndrome (also called adult progeria) suffer age-related diseases early in life — from cataracts and graying hair to…

Wildlife Wednesday: Nomads of the North – Common Redpolls

Originally posted on CutterLight:
Regularly occurring in small numbers in the village during this past winter, at times eruptive flocks of dozens of colorful Common Redpolls have descended upon Chignik Lake. Determining the population status of birds in the Chignik area can be challenging. Common Redpolls (Acanthis flammea) are a case in point. Overall, there are estimated to be…

Why are carrots orange? That’s why!

Originally posted on ItsNotWhatItsWhy:
Earlier this week I wondered what makes carrots orange. Grass is green because it contains a light absorbing pigment called Chlorophyll, and certain leaves are dark red because they contain a different light absorbing pigment to absorb a different colour of light (wavelength) to chlorophyll. All pigments are present in chloroplasts, which is…

The Yellowstone Ecosystem

Originally posted on EnviroQuest:
Happy 100th Year Anniversary to the National Park Service responsible for managing and preserving the national parks, monuments and reservations of the United States. Yellowstone, being the first national park, was declared a national park in 1872. The U.S. army was originally responsible for managing and protecting the park until the…

Genes matter: The story of genetics and its role in conservation

Originally posted on Eco-Intelligent:
Do you know why you look the way you look? People must have said you resemble someone in your family. You could have your dad’s jaw, your mom’s eyes and your grandma’s nose. However, you are never their replica. You have your own characteristics, your own features and quirks that make…

An Introduction to Zoology

Source: An Introduction to Zoology by Sameh Fouad Introduction Many scientists invented the evolution of living organisms long time ago. Different theories have been discussed. Some of them are good, others are not accurate. The study of evolution had led to the study of the life cycle of organisms and the survival strategies that organisms follow in…