Let’s face it, scratching an itch can be extremely pleasant, especially if the itch itself is overly annoying. Anyone who has ...

Researchers studied genetically modified mice that lack NP2 itch-sensing neurons, to investigate the connection between itch, scratch, and inflammation.

These caterpillars carry a toxic chemical cocktail and Inquisition-like delivery implements—and their geographic range is ...

New research published in the journal Science uncovers how scratching aggravates inflammation and swelling in a mouse model ...

Scratching an itchy rash really does make it worse. Now we know why, thanks to new research that uncovers how scratching aggravates inflammation and swelling in a mouse model of a type of eczema ...

Can cats see well at night? What about at a distance? Can cats see color? And if so, which ones? Many cat parents don’t ...

The job of the cones is to help see in the day and detect various shades of colors. The rods, on the other hand, help with night and peripheral vision (how well you see from the sides of your vision).

Doc Ophthalmol 1973;35(1):1–80. Blackwell HR, Blackwell OM . Rod and cone receptor mechanisms in typical and atypical achromatopsia. Vision Res 1961;1:62–107. Hecht S, Shlaer S, Smith EL ...

ephrin receptors Dickson, 2002 GAP-43 Assist in critical decisions Amplify environmental signals Growth cone Strittmatter, Fankhauser, Huang, Mashimo, & Fishman, 1995 Glial cells or glial wedge ...

This was followed by a loss of genes for cone receptors (9 mya), important for colour vision, and then rod photoreceptors (3 mya), which help with low-light or night vision. “When you’re underground, ...