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.
Timber rattlesnakes have a diverse habitat and can be found in deciduous forests among felled trees and rocky outsroppings to lowland swamps.rotalus horridus. The timber rattlesnake (Crotalus horridus) is one of 29 species of rattlesnake living throughout the Americas. Although the name insinuates something horrifying, literally, the timber rattlesnake is a secretive and passive keystone species keeping the ecosystem in check as both predator and prey.