Chris Hemsworth: My backyard is jurassic!

Chris Hemsworth is hanging out with members of “the real Jurassic Park” in his own backyard, according to his first Instagram post ever.

The 32-year-old Australian actor has shied away from social media over the years.

But he has decided to join picture-sharing app Instagram and his debut post on the network was an image of a giant snake slithering through grass.

“Hangin' with the locals in my backyard… the real Jurassic Park!” he wrote in the caption to the snap, which also featured him making a funny face.

Chris is father to three children with his wife Elsa Pataky.

The Thor star has previously spoken about why he decided to stay away from social media for so many years.

“I think there’s a danger of being overexposed with that stuff,” he told Prestige Hong Kong in 2012. “The mystery of who you are is what keeps people interested in wanting to see you on the screen. Also, it’s easier for them to believe you as that character if they don’t know too much about you.”

It’s clear Chris has changed his mind on the topic with the debut of his Instagram account.

And it appears he may have been motivated to join the social media conversation because of imitators and the ability to have more control over what is said about him online.

“It’s hard not to be overexposed these days with the Internet, and especially when you do a tour for something like The Avengers or Snow White, where you’re contracted to do an incredible amount of press,” he said. “Besides, I’d rather be hanging out with my family than updating to people I don’t know about what I had for lunch. Also, there are so many fake ones out there, which is pretty frustrating.”

Chris will next be seen in director Ron Howard’s picture In the Heart of the Sea, which is set for release in America on 11 December (15).