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Which teeth form the carnassials in most carnivores?

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Snow leopard (Panthera uncia or Uncia uncia) — carnivore Adult snow leopards (*Panthera uncia* or *Uncia uncia*) can grow to a length of about 2.1 meters (7 feet) from head to tail and weigh 23–41 kg (50–90 pounds).

In most carnivores, the carnassials—specialized teeth used for shearing meat and cutting tough sinews—are formed by the fourth upper premolar and the first lower molar. These teeth function with a scissorlike action as they work against one another.1

While these teeth are well-developed in highly carnivorous species such as cats, hyenas, and weasels, they show little to no modification for shearing in omnivorous carnivores like bears and procyonids, or in seals that primarily consume fish or marine invertebrates.1