03/13/2012 at 05:50 PM EDT
He has conquered thirst, pain, driving snow and flesh-eating piranhas.
But contract negotiations? Not so much lately.
Bear Grylls has been fired from Discovery's Man vs. Wild
after filming six seasons, according to the Hollywood Reporter
, citing an apparent feud over whether he'd do two other projects.
"Due to a continuing contractual dispute with Bear Grylls, Discovery has terminated all current productions with him," a network spokesperson says.
As for Grylls's future, that'll depend on his survival skills.
"Bear's goal has always been to make life-empowering shows for his many fans around the globe, and he has taken great risks to bring Discovery such award winning programming over seven seasons," his rep, Heather Krug, tells PEOPLE.
"Unfortunately, Bear and Discovery have not been able to come to mutual agreement on new programming, and he disagrees with Discovery's decision to terminate current productions," she continues.
"Bear has loved the Man vs. Wild
journey and looks forward to producing further cutting edge content again soon for his loyal audience."