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 inquiry compared the Act to legislation from France, the U.S., and Japan. The report concluded that "virtually all witnesses agreed that the UK has the tightest system of regulation in the world" and that it is "the only country to require an explicit cost/benefit assessment of every application to conduct animal research." Note that costs are explicitly in terms of adverse effects on animals, not the financial cost to the experimenters. In 2005, Patricia Hewitt, then British Secretary of State for Trade and Industry, called the Act "[among] the strongest laws in the world to protect animals which are being