Nimravides the similarities between them at first glance, based on autapomorphies in the skeleton, the two animals are too different to be classified as species of the same genus, and thus, "Nimravides" remains separate as its own genus within the Homotherini. Nimravides Nimravides is a genus of extinct saber-toothed cats that lived in North America during the middle and late Miocene, between 13.6 and 4.9 Ma. Despite its scientific name, "Nimravides" does not belong to the Nimravidae, but is a true cat, belonging to the family Felidae. "Nimravides catacopsis", one of the largest and latest species, was quite large, measuring at
Animals (Scientific Procedures) Act 1986 of regulation is governed by the granting of a "project licence" (PPL) to a suitably qualified senior researcher. The PPL details the scope of the work to be carried out, the likely benefits that may be realised by the work, and the costs involved in terms of the numbers and types of animals to be used, and the harm that might be caused to the animals. Typically a large and detailed document, the PPL precisely defines which techniques may be applied to particular animals and for what purpose. Finally, the 'place' where regulated procedures are carried out is controlled by