Beef should be aged a few days before cutting. The amount of aging will depend on the amount of fat covering, desired flavor and temperature. Carcasses that have only a thin fat covering should be aged three to five days; those with more fat, five to seven days. Very little tenderization occurs after seven days.
Ask your average paleontologist who is familiar with the phylogeny of vertebrates and they will probably tell you that yes, birds (avians) are dinosaurs. Using proper terminology, birds are avian dinosaurs; other dinosaurs are non-avian dinosaurs, and (strange as it may sound) birds are technically considered reptiles.
In cold conditions they become sluggish and don't move around much. There are four main groups of reptiles: turtles and tortoises; lizards and snakes; crocodiles and alligators; and the tuatara. The heaviest reptile is the saltwater crocodile, weighing up to 2,000 pounds. The smallest is the dwarf gecko, measuring only 3/4 of an inch.