Divers encounter a large crocodile in a cenote river in Mexico

4 years ago
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Scuba diving takes the lucky few to a world of adventure and thrilling sights. Most of us think of diving as drifting along, exploring coral reefs or swimming through schools of fish. Often it involves swimming near a sea turtle or watching a shark cruise past. But there is another side to diving that is less common and less frequently imagined when we say the words "scuba diving".

Cenotes are rivers of fresh water that are a popular diving destination, especially in Mexico. Limestone formation and erosion caused an enormous system of underground lakes and rivers, many of which are connected by tunnels and crevices. Scuba divers have been able to explore these beautiful and crystal clear cenotes for many years. The fish are unique and so is the animal life, because it is fresh water, not salt water that runs through them. Cenotes offer tunnels, ledges, overhangs, open areas, and even mangrove roots to explore.

These scuba divers had reached the turnaround point in their open cenote dive near Akumal, Mexico. They surfaced in a large pool in the mangroves from a depth of 12m (36 feet). The limestone ledges and mangrove bushes around the opening were the perfect habitat for crocodiles. This large male is 2.5m (7.5 feet) long and has a head and jaws that are full of very impressive teeth. The divers approached cautiously for a close look and some video and photographs of the formidable looking beast. Well camouflaged and large enough that he does not have any true predators, this male was not worried about a few people in his pool. But as they became braver and closed the distance, the crocodile gave them a warning that they had entered his personal bubble. With a display of his hundreds of teeth, the divers quickly got the message to move back.

Crocodiles are ambush predators that patrol the shores of the waters they inhabit. They recognize land animals that come to drink as prey. They will move silently and slowly until they are close enough for a lunge attack and they will snap their powerful jaws on the creature, dragging it into the water. Animals that are not killed quickly will be drowned and then eaten. But crocodiles are not used to hunting food in the water and they rarely see.

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