Felidae Oligocene, about 25 million years ago, with the appearance of "Proailurus" and "Pseudaelurus". The latter species complex was ancestral to two main lines of felids, the cats in the extant subfamilies and a third major group of extinct cats, which are assigned to the subfamily Machairodontinae. The machairodonts included the saber-toothed cats such as the "Smilodon". The "false sabre toothed cats", the Barbourofelidae and Nimravidae, are not true cats, but are closely related and together with Felidae and other cat-like carnivores (hyaenas, viverrids and mongooses) make up the feliform carnivores. Results of mitochondrial analysis indicates that all the Felidae descended
The Animals became their best-selling album in the US. In February 1966, Steel left and was replaced by Barry Jenkins. A leftover rendition of Goffin–King's "Don't Bring Me Down" was the last hit as the Animals. For the single "See See Rider" the band changed its name to Eric Burdon & the Animals. By September 1966, this lineup of the group had dissipated. Burdon began work on a solo album, called "Eric Is Here", which also featured Burdon's UK number 14 solo hit single, "Help Me, Girl", which he heavily promoted on TV shows such as "Ready Steady Go!" and "Top of