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  • world's
  • they are an important food source for many cultures and are used in recreation and improving livelihoods around the world.25% of the world's 5,488 mammal species are threatened with extinction. (iucn.org)
  • morphological
  • Bosnian endemic quarry mammals includes several taxa of endemic Bosnian fauna with specific morphological and anatomical characteristics, whose differentiation is still expected final verification. (wikipedia.org)
  • typically
  • bodies of mammals typically covered with hair, which has no structural homology in other vertebrates. (shsu.edu)
  • Both species show extreme sexual dimorphism, possibly the largest of any mammal, with southern males typically five to six times heavier than the females. (wikipedia.org)
  • groups
  • Molecular and palaeontological studies have supported a Cretaceous origin of Placentalia, but the age of placental mammal ordinal level crown groups (the 'modern' orders) relative to the K-Pg event has been the subject of protracted debate [ 2 - 7 ]. (royalsocietypublishing.org)
  • males
  • A good example of intrasexual selection, in which males fight for dominance over a harem of females, is the elephant seal - large, oceangoing mammals of the genus Mirounga. (wikipedia.org)
  • live
  • In mammals, pregnancy is the period of reproduction during which a female carries one or more live offspring from implantation in the uterus through gestation. (wikipedia.org)