Photo: Araya Diaz/Getty

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Bristol Palinis one proud mama.

The newTeen Mom OGstar, 27, shared an Instagram photo of her oldest son,Tripp, alongside his father, Levi Johnston, posing in front of a dead caribou — which is very closely related to reindeer — with a hunting rifle.

Palin, who is originally from Alaska, couldn’t help but gush about her 9-year-old son’s “incredible life learning experiences” in her caption.

“So proud of my son, and super thankful for his dad and stepmom for providing him with such incredible life learning experiences at such a young age!!#provider#fillingthefreezer,” Palin wrote.

She added, “(and please before you start calling peta – remember where your beef/chicken come from.. it doesn’t get more organic than this).”

Sarah Palin, Tripp’s grandmother, alsoshared the photoon Tuesday and couldn’t stop gushing about her pride in his “successful harvest.”

“My grandkids’ smiles say it all: ‘There’s no WiFi out here, but there is no better connection!’ Proud of Tripp’s successful harvest with his dad; thankful my own dad taught us to hunt & harvest, conserve, get outdoors, eat organic, appreciate Alaska’s uniqueness, & respect America’s freedoms! 🇺🇸🏔,” she wrote in the caption.

“There are many paths to take throughout life ~ I recommend you choose some that are dirt and tundra🏕🇺🇸,” she added.

RELATED VIDEO: Bristol Palin Is Joining Teen Mom OG After Farrah Abraham’s Exit: Reports

The former Alaska governor also shared a photo of herself hunting with her father in what appears to be a family tradition for them.

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Palin shared a photo of herself and her three children — including daughters Sailor Grace, 2, and Atlee Bay, 15 months — and a small camera crew in the background.

RELATED VIDEO: Bristol Palin’s Husband Dakota Meyer Files for Divorce After Less Than 2 Years of Marriage

Palin welcomed Tripp in 2008 when she was 17 years old. She shares her daughters with ex-husbandDakota Meyer.

After reports about Palin’s casting first broke,Teen Mom 2‘sKailynLowry spoke out about the news, writing on Twitter: “Bristol Palin & Cheyenne & Cory for Teen Mom OG? Our producers sure know what to do,” along with a blushing emoji.

She clarified that she was “not hating whatsoever,” but “just surprised.”

source: people.com