Evolution of human colour vision other two human opsins. Middle Wavelength Sensitive Opsin (Green-sensitive opsin) – Encoded by the OPN1MW gene with a λmax of 530 found in the green region of the electromagnetic spectrum. Short Wavelength Sensitive Opsin (Blue opsin) – Encoded by the OPN1SW gene with a λmax of 430 found in the blue region of the electromagnetic spectrum. Certain parts of opsin genes and the vision of various species, including humans, has been known to change over time with different environmental changes. Recent studies have shown that primitive nocturnal mammalian ancestors had dichromatic vision consisting of UV–sensitive and red–sensitive traits. A change
What Mattered Most What Mattered Most What Mattered Most is the debut album of American country music artist Ty Herndon, issued in 1995 on Epic Records. The album's title track, which was Herndon's debut single, reached No. 1 on the "Billboard" Hot Country Singles & Tracks (now Hot Country Songs) charts in mid-1995. Other singles from the album were, in order, "I Want My Goodbye Back," "Heart Half Empty" (a duet with Stephanie Bentley) and "In Your Face." Doug Johnson produced the entire album, with additional production from Ed Seay on "Heart Half Empty". "What Mattered Most" was released on April 18, 1995,