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 additional protection over other vertebrates under the Act. Revised legislation came into force on January 1, 2013. The Act has been expanded to protect - The definition of regulated procedures was expanded to - ASPA also regulates the modification of genes in protected animals if this causes the animal pain, suffering, distress or lasting harm. Other considerations in the Act include animal sources, housing conditions, identification methods and the humane killing of animals. This legislation is widely regarded as the strictest in the world protecting animals used in research. Those applying for a license must explain why such research cannot