Many of Southeast Asia's snakes eat frogs, including the chubby frog. As in other parts of the world, Southeast Asia's snakes are divided into two groups, venomous snakes and colubrid snakes. Colubrid snakes use constriction, or suffocation, to kill their prey, while venomous snakes use the venom in their fangs to paralyze their prey. Certain colubrids spend most of their time near aquatic habitats -- one of the chubby frog's primary habitats; these snakes include water snakes and Asian vine snakes, which dive into water after prey. Southeast Asia's venomous snakes are cobras, coral snakes and pit vipers.
Two crocodilian species live in Southeast Asia, the mugger crocodile and saltwater crocodile. Both crocodiles prey on mammals, reptiles and amphibians -- including the chubby frog. The distribution of mugger and saltwater crocodiles includes Malaysia, Thailand, Burma, India and Indonesia. In spite of their name, saltwater crocodiles, or Crocodylus porosus, also live in freshwater environments such as rivers, lakes and marshes. Most crocodiles that pursue frogs are younger crocodiles; adult crocodiles usually chase after bigger game. The larger of the crocodiles, the saltwater crocodiles, reach lengths of 17 feet as adults.
Monitors are large lizards found throughout Southeast Asia. Monitors are in the Varanidae family of lizards and live in environments such as aquatic habitats, forests and grasslands. The aquatic monitors present the most danger to chubby frogs because monitors possess powerful legs and tails for swimming. However, monitors usually prefer invertebrate prey -- insects, arachnids and crustaceans -- over vertebrate prey. Bengal monitors (Varanus bengalensis) and Asian water monitors (Varanus salvator) live in the same range as chubby frogs; making their homes in southern India, Sri Lanka, Myanmar and Malaysia.
Southeast Asia is home to wetland birds and many of these birds prey on amphibians. Wetland birds live in aquatic habitats and pose the greatest threat to chubby frogs. These birds build their nests by the shores of lakes and rivers. When feeding their young, wetland birds find prey, such as chubby frogs, and feed it to their offspring. Many of Southeast Asia's countries are home to wetland bird species such as the Indian pond heron, Storm's stork, Sarus crane, Chinese egret and black-headed ibis. Some wetland birds with long beaks -- such as black-headed ibis and Storm's stork -- are able to dig underground to find chubby frogs.