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.
Important reptile groups include lizards of the Lacertidae with 63 species (23 percent of the world total), snakes of the Viviperidae with 19 species (8 percent of the world total), and tortoises of the Testunididae with four species. Overall, 34 percent of Mediterranean Basin reptiles are endemic to this region.