Known for: Two pairs of intimidating, razor-sharp curved tusks. The upper canine pair can grow up to 10 inches long. The lower tusks brush against the canines every time the warthog closes its mouth, making them sharper and sharper over their lifetime.
But as babies: They remain in the burrows where they were birthed for the first few weeks of their life suckling with their mothers. Piglets are gradually weaned and learn to graze (under Mom's strict supervision, of course) within four months.
5. Spotted Hyena