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
Fund for the Replacement of Animals in Medical Experiments Michael Balls. FRAME receives no direct funding from local or central government and relies entirely on donations, legacies and corporate support. A list of its current corporate supporters is available in its annual report each year. Fund for the Replacement of Animals in Medical Experiments Fund for the Replacement of Animals in Medical Experiments (FRAME) is a charity based in Nottingham, UK. FRAME promotes consideration of the ethical and scientific issues involved in the use of laboratory animals for medical research, and the adoption of the Three Rs strategy of alternatives to animal testing. The Three Rs (Replacement, Reduction, Refinement)