Megafaunal extinctions are recurring events that cause evolutionary ripples. as cascades of secondary extinctions and shifting selective pressures reshape ecosystems. Megafaunal browsers and grazers are major ecosystem engineers. they: keep woody vegetation suppressed; are nitrogen cyclers; and serve as seed dispersers. https://www.roneverhart.com/1915-Old-Taylor-Bourbon-Bottled-1933-Prohibition-Bottling-Quart-low-fill/