The former host of Animal Planet's Wild Recon has admitted offering to sell two endangered monitor lizards without a permit.
Donald Schultz pleaded guilty to violating the Endangered Species Act in Los Angeles.
Schultz offered to sell the Iranian desert lizards for $2,500 (£1,500) to an undercover federal wildlife agent who answered his 2010 offer on Facebook.
On his show, the 36-year-old parachuted into remote locations to take biological samples from deadly snakes and other dangerous animals.
As part of a plea deal, Schultz is expected to be sentenced to two years' probation and 200 hours of community service.
Prosecutors also proposed a $6,000 (£3,700) fine and $3,000 (£1,850) restitution.