Alpaca’s mouths have six
lower incisors and no upper incisors, only a soft dental pad used for snipping at plants. The lower incisors line up
with the dental pad making their eating ability a highly efficient method for plants.
Alpaca’s incisors continue to grow their entire life.
The total number of teeth varies between
male and female from 30 to 32 teeth. The male alpaca has two additional teeth exposed and those teeth are called fighting
teeth. Fighting teeth used for fighting competing males for females can cause serious injuries.
The alpacas have a split upper lip and it is prehensile. Each lip can be moved independently of each other and alpacas use them to investigate potential food items
and draw it to the teeth.
The Llama's ears are banana shaped, and
from a distance, they can resemble horns. The Alpaca's ears are relatively short,
symmetrical spear shaped, and generally quite furry.
Alpacas have two toes with a pad underneath
that sustain their whole body weight. The toes have two strong toenails that
look similar to that of dogs and move freely for climbing in rocky areas.
Alpaca’s digestion differs from advanced ruminants in stomach
morphology, digestion, diet selectivity. Alpacas have a compartmentalized stomach,
which is functionally similar to that of true ruminants, but have three compartments rather than four. Rapid absorption of water and dissolved nutrients combined with an ability to maintain a better nitrogen
balance than sheep means that they consume less forage per unit of body weight than other domestic species of the same production
status and they can make better use of poorer quality feeds.
Both species of alpacas can have one offspring, called a cria (kree-ah), approximately
eleven and a half month after insemination. Twins are very rare and normally do not survive.