Dunkleosteus was a giant, ancient fish that weighed as much as three elephants. Dunkleosteus had one of the most powerful bites ever recorded.
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Animal Armageddon: Dunkleosteus
Dunkleosteus was a giant, ancient fish that weighed as much as three elephants. Dunkleosteus had one of the most powerful bites ever recorded.
Eusthenopteron, an ancient fish, was an agile predator with a nasty bite. Eusthenopteron had many unique features shared by the earliest land vertebrates.
Ichthyostega: not quite fish and not quite amphibian. What exactly was this ancient creature? We do know that it had lungs, limbs and lived mostly on land.
The coiled nautiloid was among the top predators of the Ordovician. Its coiled shell allowed it to survive at much deeper depths than the straight-shelled nautiloids.
Acanthodian, a fish, is one of the first vertebrates with jaws. This revolutionary adaptation allows fish, a once-rare lifeform, to take over the planet.
Astraspis was one of only a few fish species prior to Earth's first mass extinction 450 million years ago. This tiny fish had something never before seen on Earth: a primitive backbone.
The straigh-shelled nautiloid was the great white shark of its time. A perfectly designed killing machine, it was up to 20 feet long and had an insatiable hunger.
Phobosuchus was a prehistoric monster, the largest species of crocodile ever known to have walked the earth. Instead of zebras and wildebeest, it fed on dinosaurs.
A Tyrannosaurus rex goes head-to-head with a prehistoric dragon. The dragon is outmatched by the T. rex's size, but it's got a few tricks up its sleeve.
In Australia, local lore speaks of a fearsome dragon that feeds on human flesh. Some believe it's a prehistoric lizard called Megalania. Others simply call it... Devil Dragon!