Transgender fish found in British Rivers loading...
Transgender fish found in British Rivers
From flushing harsh chemicals down the toilet.
Watch This Venomous Fish Camouflage Into Its Surroundings loading...
Watch This Venomous Fish Camouflage Into Its Surroundings
A diver captured video of this little-understood species expertly blending into the ocean floor.
See an Underground Mammal Found Inside a Fish loading...
See an Underground Mammal Found Inside a Fish
A Missouri fisherman had quite a surprise when he hauled up a largemouth bass from his pond.
Bats, Jellyfish, and Other Animals With Daily Commutes loading...
Bats, Jellyfish, and Other Animals With Daily Commutes
We humans aren't the only ones in the rat race.
Two-Headed Porpoise Found For First Time loading...
Two-Headed Porpoise Found For First Time
Fished from a trawl net, Dutch fisherman stumbled upon the extremely rare catch in the North Sea.
Cuttlefish Pretend to be Crabs to Catch More Fish loading...
Cuttlefish Pretend to be Crabs to Catch More Fish
The surprising behaviour has scientists asking new questions.
Nightmarish, Toothy Lizard Fish Found in Ocean Deep loading...
Nightmarish, Toothy Lizard Fish Found in Ocean Deep
Researchers exploring Australia's deep sea found this menacing-looking, rarely seen creature.
Why Slimy Fish Lips Are the Secret to Eating Stinging Coral loading...
Why Slimy Fish Lips Are the Secret to Eating Stinging Coral
The tubelip wrasse has evolved a strategy for preying on an animal most reef creatures avoid.
Snakes Gang Up to Hunt Prey—a First loading...
Snakes Gang Up to Hunt Prey—a First
Cuban boas aren't the only surprising species that work together to earn their dinner.
‘Faceless’ Fish Seen for First Time in Over a Century loading...
‘Faceless’ Fish Seen for First Time in Over a Century
The mysterious, gelatinous animal was pulled up from the ocean deep.
Watch a Strange 'Walking Fish' That Has Experts Stumped loading...
Watch a Strange 'Walking Fish' That Has Experts Stumped
A diver in Bali, Indonesia, encountered the rare animal pacing the seafloor at night.
About the Show
Dr Zeb Hogan, National Geographic Explorer and an aquatic ecologist goes on his journey to find the largest freshwater fish in Australia – the freshwater sawfish, a cross between a shark and a chainsaw. These amazing monsters are nearing extinction but our continent is a stronghold for this elusive fish. Zeb gets in the water to learn about the sawfish's amazing hunting technique, stunning prey with its saw-like rostrum and then eating it whole. Zeb teams up with a local scientist, David Morgan and the indigenous Jarlmadangah Rangers, to catch and study the monstrous sawfish in the Fitzroy River in the country’s northwest. Zeb travels deep upstream into the desert where freshwater pools hide huge predators like the saltwater crocodile and bull sharks. Zeb and the team follow the sawfish migration from the estuary upstream and back again until they return to the sea. He tags and releases many sawfish, from a month old baby to a 2.2-metre megafish on its way to the ocean where it could someday grow to be a monster 7-metre fish.

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