Mast (botany) some domestic animals consume. Mast is found in two forms. Mast is generated in large quantities during mast seeding events (or masting, mast events). Mast seeding is a population-level phenomenon that is hypothesized to be driven by economies of scale, weather, and resources. These pulses of resources drive ecosystem-level functions and dynamics. Tree species such as oak, hickory, and beech produce a hard mast—acorns, hickory nuts, and beechnuts. It has been traditional to turn pigs loose into forests to fatten on this form of mast. Other tree and shrub species produce a soft mast, such as raspberries, blueberries, and greenbriar.
The Tree of Crows The Tree of Crows The Tree of Crows (also known as Raven Tree) is an oil painting of 1822 by the German Romantic artist Caspar David Friedrich. Acquired by the Musée du Louvre in 1975, it has been called one of Friedrich's "most compelling paintings." The painting depicts a twisted oak tree, bare but for a few dead leaves, seen against an evening sky. An inscription on the back of the canvas refers to the hill at the painting's center as a "Hünengrab", or dolmen, a prehistoric burial ground. In the distance can be seen the ocean, and Cape Arkona's