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On the Cumbarjua canal, there is a thriving and vibrant mangrove habitat which serves as spawning ground for fish, prawns, and mollusks. This marine-life-rich ecosystem also sustains a healthy population of birdlife and crocodiles. The population of crocodiles in the Cumbarjua canal is currently estimated to be between 40-50. The canal is a 15 km long stretch of water located about 20 minutes drive away from Panaji. It links the two biggest rivers in Goa - the Zuari and Mandovi.
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In the village of Durbhatwadi on the canal, the crocs are even worshipped on the day of the new moon in January as the guardian spirit of the community. This crocodile worship festival is called, “Maange Thapnee” in the local Konkani language of Goa.
Most of the Cumbarjua crocodiles are used to human presence so much so that the local children even swim in the canal with the crocodiles nearby. If anybody ventures too close, they just jump into water and move away.
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The Crocodylus Palustris (crocodiles) of the Cumbarjua breed is unique, as the muggers are freshwater crocodiles that have adapted to the saline mangrove eco-system- an achievement nowhere else found in India.
These crocodiles in Goa being cold-blooded, they need to spend a lot of time in the sun to keep them warm. Hence you can see them sunbathing on the muddy shores of the Cumbarjua canal. The grayish-brown skin of the crocodiles ensures they are extremely well camouflaged on the mud banks.
These fresh-water crocodiles of Goa are basically scavengers who also prey on sick fish and birds as well as crabs, dogs, cats, and - the very big ones on buffaloes or deer. They may even eat rocks to act as ballast and help them stay underwater for up to an hour at a stretch. But they don't eat much and get hungry only once every two weeks or so.
The crocodiles which John shows you are a hole-nesting species, with the eggs laid in a pit away from the water's edge and guarded by the mother crocodile. Out of the typical clutch of about 30 eggs, only two or three hatchlings are expected to survive, the others becoming snacks for predators like mongoose, rats, ants, birds, and even some humans who consider crocodile eggs a delicacy. A full grown adult can grow up to 4 meters in length. To communicate, they bark like a dog or let out a bellow.

The owner of John's boat tours, Mr. John Rodrigues shares his extensive knowledge, informing tourist that the life span of a Goan crocodile is between 60 to 80 years. During the mating season which lasts from November to February, the crocodiles make a spectacular sight thrashing, jaw-slapping and blowing of water bubbles.
The Cumbarjua canal and river holds many a charm- the meandering river, the whispering mangrove, the wild crocodiles, peregrine falcon or the white collard kingfisher and a variety of butterflies that have drawn many tourists, travelers and nature lovers to the bio-diversity that exists here.
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