Siblings may not get along always, but they share an unbreakable bond and are ready to go an extra mile for each other.

Like this 6-year-old boy from the US who became the internet's hero for saving his younger sister from a dog attack.

Source: Instagram

On 9th July, the boy, Bridger Walker, risked his life to save his sister from a dog running towards her. He came between the dog and the little girl and ended up taking on the attack by the animal.

After getting bit multiple times on the face and head, Bridger apparently grabbed his sister's hand and ran to save her life.

Source: Instagram

The brave boy survived the attack and also got 90 stitches on his face. Reports suggest that he is keeping well right now.

Source: Instagram

Bridger's aunt, Nikki Walker, shared an Instagram post explaining the incident and telling the brave boy's story.

View this post on Instagram

Hey, all. Please, share my nephew’s story so that it gets as much exposure as it can. We know that our little hero would love some words of encouragement from his favorite heroes. On July 9th, my six year old nephew Bridger saved his little sister’s life by standing between her and a charging dog. After getting bit several times on the face and head, he grabbed his sister’s hand and ran with her to keep her safe. He later said, “If someone had to die, I thought it should be me.” After receiving 90 stitches (give or take) from a skilled plastic surgeon, he’s finally resting at home. We love our brave boy and want all the other superheroes to know about this latest hero who joined their ranks. @tomholland2013 @chrishemsworth @robertdowneyjr @markruffalo @prattprattpratt @twhiddleston @chadwickboseman @vindiesel @chrisevans EDIT: I just finished visiting with Bridger at his home. His wounds are looking so much better! He’s in great spirits, and his awesome personality is intact. He can’t smile too widely yet, but he was grinning as I read some of your comments to him. I’d also like to mention here that the dog’s owners are really great people who have been nothing but kind to Bridger and his family. We feel no resentment toward them at all, and—if anything—there’s only been an increase of love between our families as a result of this incident. EDIT 2: Once again we’re blown away by the amazing comments and messages that Bridger’s receiving. I’ve had lots of inquiries about a GoFundMe. Bridger’s family has asked that any one wishing to help out financially can, instead, donate to @mission_22 or @wwp. Bridger is also a huge fan of Science, especially Geology. So I’m going to start a post where people can share with him pictures of cool rocks that they see. EDIT 3: Once again, everyone’s kindness has meant so much to us. I’m trying to get to all of the messages that I can, but it may take some time. For those who have inquired about sending Bridger some rocks, here’s the address to use: Bridger Walker P.O. Box 22141 Cheyenne, WY 82003 #BridgerStrong

A post shared by Nikki Walker (@nicolenoelwalker) on

According to the post, after saving his sister, Bridger said:

If someone had to die, I thought it should be me.

The post has went viral on social media with netizens hailing the little boy as a hero.

Later, his aunt also wrote that Bridger is a fan of science, especially Geology and people can send him pictures of rocks on another Instagram post started by her.

She also shared the boy's address for those who want to send him rocks.