This is pretty incredible!!
Two children in Kenya, David Mbogo, 7, and Mary Wanjiku, 6, were abandoned by their birth mother years ago.
They are currently living with their grandmother, but she is often too busy dealing with the five other children she cares for.
Their grandmother is so thankful for Oscar but still wishes more could be done, saying:
"I pray to God that we can get a better dwelling for the kids. That is our greatest need."
Even though their situation isn't ideal, we're so glad they have Oscar the dog to help them out!
Way to be a caring, surrogate mama, Oscar!!
Check out the video (above) to see Oscar walk his babies to school!