Felidae the Felidae, later turned out to be members of related, but distinct, families: the "false sabretooths" Nimravidae and Barbourofelidae. As a result, sabretooth "cats" seem to belong to four different lineages. The total number of fossil felids known to science is low compared to other carnivoran families, such as dogs and bears. Felidae radiated quite recently and most of the extant species are relatively young. Felidae The biological family Felidae is a lineage of carnivorans colloquially referred to as cats. A member of this family is also called a felid or feline. The term "cat" refers both to felids in
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