Tadpoles of frogs are mostly herbivorous, while tadpoles of salamanders and caecilians are carnivorous. Examples are frogs and toads, salamanders, newts and caecilians (which resemble snakes). Amphibians are a class of animals comprising frogs, salamanders and caecilians. Modern amphibians (frogs, salamanders, and caecilians) are classified in Lissamphibia. Toads, salamanders and caecilians also use smell to detect prey. Amphibians in the park include caecilians, frogs, and toads. Other amphibians, but not caecilians, are ovoviviparous. The rest of the Lissamphibia evolved in this period, introducing the first salamanders and caecilians. For both oviparous and viviparous caecilians, delayed investment is a common benefit. Additionally, about 75% of caecilians are viviparous. This scraping method is different from the peeling actions performed by oviparous caecilians. The majority of caecilians are ovoviviparous and give birth to already developed offspring. Similar considerations apply to caecilians and aquatic mammals. In terrestrial caecilians, the eggs are laid in grape-like clusters in burrows near streams. The Western Ghats in India are home to several species of caecilians (Gymnophiona).