This 31 May 2020 video says about itself:
All (Extant) Hyena Species
Hyenas or hyaenas are any feliform carnivoran mammals of the family Hyaenidae.
With only four extant species, it is the fifth-smallest biological family in the Carnivora, and one of the smallest in the class Mammalia.
1- Spotted Hyena
(Crocuta crocuta)
It is also known as the laughing hyena. It is the largest hyena (extant) species.2- Striped Hyena
(Hyaena hyaena)
It is the smallest of the ‘’true’’ hyenas.3- Brown Hyena
(Hyaena brunnea)
It is currently the rarest species of hyena.4- Aardwolf
(Proteles cristata)
It is also called “Maanhaar jackal” or Civet Hyena, based on its habit of secreting substances from its anal gland, a characteristic shared with the civet.Music: Night Driver (YouTube Audio Library)