In Nagsabaran, deer was the second most amount of mammal faunal found on the site. The variety of teeth found indicates that deer of all ages were hunted on this site. Deer bones, mainly the lower limb portions,  were used to manufacture tools using a groove and snap technique. Deer faunal assemblages were higher in lower populations because they tended to withdraw from populated environments. One of the few animals the Austronesian speaking people brought with them on their journey to Southeast Asia. Water-buffalo is credited with the success of  wet rice cultivation. Unlike cattle, their hooves allow them to move easily through soft rice field without sinking. The scientific name for a domestic water- buffalo is "Bubalus bubalis". The two types of breeds for a domestic buffalo is swamp and river. River buffaloes have started replacing swamp buffaloes even though prehistorically  swamp-type buffaloes can be seen in the early second millennia BC. Water buffalo, "Bubalus bubalis", were identified at the Nagasbaran site dating to around 500 BC. This date was confirmed using radiocarbon dating of the oldest fragments found in the same layer. This contributes to Karen Mudar's theory that they were introduced to the Philippines in the late Neolithic. Their introduction long precedes the records of the species being introduced from China or Mexico during the 16th century. It is inferred that their intended use was agricultural and also social and economic. Analysis of recovered specimen, a pattern of butcher marks on adult buffalo  revealed that they might have also been a source of food. Ethnographic studies conducted in the 1990s illuminated the importance of water buffaloes for agricultural purposes and as sacrifices in feasts. In the Philippines the swamp-type buffalo is referred to as carabao. In Tagalog "kalabaw" is another name for carabao,  a name taken from Spanish. Before Spanish introduction they were also known as "nowang" or "anowang" in Luzon  At Nagasbaran site no domestic chicken ("Gallus gallus") were found. They are deemed to be a rare occurrence in the Neolithic and Metal Age records. However, their introduction route to Oceania is still unknown. As more studies are conducted starting to realize the origins of domestic chickens can be seen everywhere. If chickens are seen it is most likely that they hold an economic importance, as well as being used in cockfights. One of the animals that traveled with the Austronesian speaking people from Island Southeast Asia to Oceania.