Wild boars and Philippine Deer which are considered endangered live around the lake.

The Philippine deer is largely nocturnal in activity, resting in dense forest thickets by day.

Other fauna includes Philippine monkeys, Philippine deer and wild pigs.

Philippine deers (erroneously reported by some as wild goats) and crab-eating macaques were also recently spotted in the area.

The Philippine deer, Philippine warty pig and Tarsier are also found here.

The Philippine deer is a medium-sized species, but generally much smaller than its cousin, the Sambar Deer.

Philippine Deer (Cervus mariannus)

Apart from the tamaraw, other forms of wildlife are also found within the park including the Mindoro Climbing Rat, Philippine deer, and wild pigs.

The park houses several indigenous plants and animals such as crab-eating macaques, water monitors, Philippine deer, binturongs, Palawan bearded pigs and several varieties of birds.

The Philippines also have three endemic species of deer namely the Philippine Deer, the Calamian Deer and the Philippine Spotted Deer.

From the seventeenth through nineteenth centuries, the Spanish introduced pigs, dogs, chickens, the Philippine deer (Rusa mariannus), black francolins, and carabao (a subspecies of water buffalo), which have cultural significance.

Among its native wildlife are 33 bird species and several threatened mammals such as the Philippine Deer, Giant Bushy-Tailed Cloud Rat ("bowet") and the Long-Haired Fruit Bat.

Although it primarily refers to R. unicolor, the name "sambar" is also sometimes used to refer to the Philippine deer (called the Philippine sambar) and the rusa deer (called the Sunda sambar).

The Philippine deer (Rusa marianna), also known as the Philippine sambar or the Philippine Brown Deer, is a species of deer native to the forests and grasslands on most larger islands of the Philippines,.