Agar. Agar or agar-agar is a gelatinous substance derived by boiling a polysaccharide in red algae, where it accumulates in the cell walls of agarophyte and serves as the primary structural support for the algae's cell walls.gar. Agar or agar-agar is a gelatinous substance derived by boiling a polysaccharide in red algae, where it accumulates in the cell walls of agarophyte and serves as the primary structural support for the algae's cell walls.
Photo by Lisa Powers. Description: Typical timber rattlesnakes measure anywhere from 36-58 inches (91-147 cm) in length with Klauber (1956) reporting the largest timber rattlesnake ever recorded to be 74  inches (189.23 cm) collected near New Orleans, LA in the 1940s. Timber rattlesnakes are the 2nd largest venomous snake found in the eastern United States.
The average size of a mature Western Diamondback Rattlesnake is 3 - 5 feet in length, with some getting as large as 7 feet. The Western Diamondback Rattlesnake is the largest rattlesnake in the western United States. The Western Diamondback Rattlesnake is a heavy, thick-bodied snake. The body of the snake varies in color and can be yellowish grey, grey, tan, or pinkish and has dark diamond-shaped blotches that form a pattern along the snake's spine. The diamonds are outlined in a cream color.