A male tiger is referred to simply as a tiger, according to InfoPlease.com. A female tiger is known as a tigress, and a baby tiger is called a cub or whelp, regardless of gender. A group of tigers, whether male, female or mixed, is called an ambush or a streak.
Scientific names for tigers vary by species. For instance, Siberian and Amur tigers are known as Panthera tigris. Tigers are the largest member of the cat, or Felidae, family, and therefore, in a more general sense, a tiger can also be called a felid. Male tigers have bodies as long as 8 to 10 feet and tails that are about 3 feet long.