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
People for the Ethical Treatment of Animals They promote alternatives, including embryonic stem cell research and in vitro cell research. PETA employees have themselves volunteered for human testing of vaccines; Scott Van Valkenburg, the group's Director of Major Gifts, said in 1999 that he had volunteered for human testing of HIV vaccines. PETA opposes the use of animals for producing clothing made with fur, leather, wool, or silk. It also opposes the use of down from birds and the use of silk from silkworms or spiders. The group notes on its website: "Every year, millions of animals are killed for the clothing industry—all in the name of