(Meredith) -- A dog in Montana is now living a much happier life after she lost more than half her body weight in 11 months.

Pearl, who is now 12 years old, weighed 50 pounds and was unable to walk more than four or five steps before her legs would give out. She also had a dislocated hip and Cushing’s Disease, a chronic condition that can cause weight gain.

Pearl was surrendered to the Humane Society of Western Montana in December 2018.

Shelter employee Jessie Maclay, 23, told KTMF she knew right away that she wanted Pearl to try water therapy to shed some pounds. She also adopted Pearl.

At first, Pearl could only swim for 10 seconds at a time before taking a break. But after 54 swimming sessions, Pearl built up her endurance and was able to swim for up to 15 minutes at a time.

Maclay said Pearl lost about 30 pounds – more than half her body weight – by practicing water therapy. She is now a healthy weight of 20 pounds and her personality has begun to shine through.

"She is amazing, she runs, she swims, she plays with other dogs she has the biggest personality that I never ever would have ever expected when I first met her,” Maclay told KTMF.

Pearl is also following a strict diet and is given green beans as treats – and she loves them!

Pearl was also featured in People Magazine’s “Half Their Size: 2020” edition and later appeared on Good Morning America.

You can follow Pearl on Instagram here.

Copyright 2020 Meredith Corporation. All rights reserved.

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