"The Big Bang Theory" star Kaley Cuoco celebrated her 30th birthday with a bang. The recently single star screamed with fun as with 12 of her best girl friends while having a wildlife encounter in Mexico.

Cuoco, also known as an animal lover, chose to spend her big 3-0 in the arms of jaguars and other furry friends tagging along 12 pals including her sister Briana Cuoco, People magazine reports.

Of course, Cuoco shared all that happened on social media, including her preparations to fly in two planes going to a mysterious place, which was later identified to be in Mexico, as per ET. Cuoco posted a photo of herself wearing a birthday hat and holding a glass of champagne.

"2 planes, 12 best friends, one 30th bday, destination unknown = priceless," she wrote as a caption on Instagram.

On Sunday, People revealed that the group including the birthday girl went to an animal sanctuary maintained by the Black Jaguar White Tiger foundation.

The foundation takes care of different types of jaguars, which Cuoco enjoyed spending time with. She even posted several photos with them on Instagram.

On one black and white photo, Cuoco was seen petting a jaguar. "Starting off my 30th year with a roar... Surrounded by my best friends and all the lions and tigers I can count @blackjaguarwhitetiger #ithinkthismustbeheaven#cuocosistersbirthdayextravaganza," she wrote on Instagram.

"The Big Bang Theory" actress, who is reportedly paid a staggering $1 million per episode according to E! News, also posted a photo of herself with the Black Jaguar White Tiger's founder, Eduardo Serio.

"Epic Eddie #badassdude #ouralbumcover @blackjaguarwhitetiger #dirty30 #savingtheworldonerescuecatatatime," she wrote on Instagram alongside the photo.

The foundation's mission, which Cuoco just supported for her 30th birthday, according to its official website, is "To rescue Big Cats from sad circumstances and provide them with the best lifestyle available. A life governed by Love and respect."

Cuoco's 30th birthday comes after news broke that she and ex-husband tennis player Ryan Sweeting are separating, releasing a joint statement in September. "Kaley Cuoco and Ryan Sweeting have mutually decided to end their marriage," a representative of Cuoco said as quoted by People. "They ask for privacy at this time. No further statement will be issued regarding this matter."

Four days later after the statement on Sept. 25, Cuoco reportedly filed for divorce.