Serval along with the caracal and the African golden cat, forms one of the eight lineages of Felidae. According to a 2006 genetic study, the "Caracal" lineage came into existence 8.5 mya, and the ancestor of this lineage arrived in Africa 8.5–5.6 mya. The phylogenetic relationships of the serval are as follows: The name "Leptailurus" may have been constructed from the medieval Greek λεπταλέος or λεπτός meaning "fine, delicate". The name "serval" could have been derived from the Medieval Latin words "Lupus cervalis" ("deer-like wolf") or from its Portuguese equivalent "lobo-cerval" (referring to the Iberian lynx). The first recorded use of
Serval the mother loses her litters. Observations of captive servals suggest that when a female enters oestrus, the rate of urine-marking increases in her as well as the males in her vicinity. Zoologist Jonathan Kingdon described the behaviour of a female serval in oestrus in his 1997 book "East African Mammals". He noted that she would roam restlessly, spray urine frequently holding her vibrating tail in a vertical manner, rub her head near the place she has marked, salivate continuously, give out sharp and short "miaow"s that can be heard for quite a distance, and rub her mouth and cheeks against