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Britney Spears Slammed By Peta Over New Puppy ... Buying Dogs is Toxic!!!

Britney Spears has a new battle to handle. Along with a contentious divorce, she's now getting ripped by the animal rights warriors at PETA for buying a new dog, instead of rescuing one from a shelter.

The "Toxic" singer showed off her new puppy Wednesday on social media, introducing the world to an all-white puppy -- appropriately named Snow -- and while Britney's over the moon about her new family member, the folks over at PETA are not.

A rep for PETA tells TMZ ... "When influential people buy puppies, puppy mills cheer and animal shelters watch the homeless-animal crisis get even worse. With this one cutesy post, Britney Spears has sentenced countless deserving dogs in shelters to more days without love, a comfy bed to curl up on, or a chance at a real life."

Britney got Snow after her estranged husband Sam Asghari filed for divorce, and the former couple hammered out an agreement splitting up the 5 dogs they shared when they were together.

TMZ broke the story ... Sam's keeping their Doberman, Porsha, and Britney's hanging on to the other 4 pooches.

With Snow in the fold, Britney's back up to 5 dogs at home, but PETA is wagging a tail finger, saying ... "She could have been a force for good and adopted, but instead she chose to be toxic, and animals will pay with their lives."

Wordplay aside, PETA's pissed ... again. See? It's not just you, Pete Davidson.

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