The amount and type of color pigment in the iris defines eye color. In humans, phenotypically, eye color falls into one of these basic categories -brown, blue or green. Brown eyes are the most ...

Nilsson’s eyes, of which he has two, are ice blue and forward facing ... “They would have done so much better with camera-type eyes. But evolution didn’t find that. Evolution isn’t ...

Through natural selection, different types of eyes have emerged in evolutionary history -- and the human eye isn't even the best one, from some standpoints. Because blood vessels run across the ...

Our eyes may also help healthcare providers detect warning signs of certain cancers. Squamous cell, basal cell, and melanoma ...

Tests are done to determine if someone has hepatitis A, B, or C. Tests for alcoholic hepatitis include liver function tests, ...

The types of smiles that politicians display can give us insights into their personalities and how they’ll lead.

Drag the slider to the left to see how an animal would see the same scene. Whereas human eyes contain three types of colour-detecting cells, called cones, dogs have just two. Their cone cells are ...

Pad eyes are eyelets, rings, or loops that attach to machinery or equipment. They can be used for tie-down, lashing or securing applications, but are not usually rated for overhead lifting. There are ...

To help you make the best decision, we’ve provided an overview below of the seven different types of business ownership you’ll want to consider, along with their pros and cons and what makes ...

The company’s structure is typically chosen based on the type of business it is engaged in. A franchise is a type of contract that grants a person (known as the franchisee) the right to do ...

Psychotherapy approaches are many and varied. Some types of therapy have been in use for decades, such as person-centered therapy (also known as Rogerian therapy), and others are relatively new ...