00:00When ocean predators venture inland, sharks that swim in rivers.
00:05A bull shark can swim far up a muddy river.
00:09Across rivers, lakes, estuaries, mangroves and warm coastal water,
00:13some sharks move where people expect only freshwater fish.
00:18The bull shark enters rivers from the ocean,
00:21using a strong body and special salt balance to survive inland.
00:25The Ganges shark lives in India's Ganges River system,
00:28where pollution, fishing and river changes threaten its small population.
00:33The northern river shark moves through northern Australian rivers,
00:37hunting in murky water where visibility stays low.
00:40The spear-toothed shark swims through rivers and estuaries in northern Australia and New Guinea,
00:45using sharp teeth on fish.
00:48The Lake Nicaragua shark is a bull shark population known for moving between Caribbean water and the lake.
00:54The Zambezi shark is another name for the bull shark, often linked to African river systems.
01:01The Sumatran shark can enter estuaries in shallow coastal water where rivers mix with the sea.
01:06The black-tip reef shark usually stays near reefs,
01:10but young sharks may use brackish edges near river mouths.
01:13Some hammerhead sharks enter estuaries,
01:16where salty and freshwater meet around mangroves and sand flats.
01:19These sharks share one pattern.
01:23Murky water, river mouths, fish and adaptability can bring ocean predators inland.
01:29When a fin cuts through brown river water,
01:32freshwater suddenly feels less familiar.
01:35So I know about this is where to depend the ocean and people who have to live in the Boxes.
01:35This is where theใใช and the dark of the lakework..."
01:35Of the fleet of fish in the overhear section.
01:36Enjoy the plats in the ocean and every day.
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