An enormous crocodile was seen galloping towards a man in the stuff of nightmares.
The enormous beast named Chainsaw was seen leaping towards him instead of slowly waddling over.
Hair-raising footage showed the Cuban croc leaping like a horse at Gatorland Orlando wildlife reserve in Florida.
Meanwhile, the man it was chasing sprinted to get out of its way while visitors at the park watched on with bated breath.
The croc opened its jaw to bear its razor-sharp teeth, as it chased the man and then waddled away.
The US theme park posted the clip on social media where it has hit more than 1.4 million views so far.
A spokesperson said: "Chainsaw in action. Our amazing Cuban crocodile."
Many internet users were bowled over by the agile crocodile which was able to jump and run at speed.
But Chainsaw's moves are not out of the ordinary as the species are known for being strong swimmers and adept at walking and leaping.
The critters are equally at home in water on land and can leap from rivers to catch their prey.
Using their powerful tail thrust, they can push themselves out of the water to catch birds and mammals in overhanging tree branches.
Modest in size, they grow up to 7.5ft and typical weigh up to 12.8st.
Despite their medium size, they are highly aggressive animals, and potentially dangerous to humans.
The video of Chainsaw received a huge reaction online with viewers commenting that they had never seen a croc run like that before.
"I love that Cuban crocodiles gallop," one person commented on Facebook.
"I’ve never seen croc or alligator run like that. WTH,” another penned.
"I've never seen a croc jump and run at the same time! That’s gonna be a no for me bro lol,” a third baffled viewer exclaimed.
Another person left stunned by the footage added: "I didn’t think they ran like that, thought it was more of a ‘waddle’ than a run.
"Slow motion really shows it well."
A fifth joked: "Did not realised they hopped like frogs. I thought they ran alternating legs."
Spread across 110 acres, Gatorland Orlando is home to thousands of alligators and crocodiles.
The park also features an aviary, breeding marshes and a petting zoo.