Every year, National Adopt a Shelter Pet Day highlights the thousands of adoptable animals still waiting to find their

Animal shelters tend to feel the strain in the summer—and this year, there’s a nationwide push to do something about it. The Foster 50 Challenge, led by PEDIGREE Foundation, is calling on pet lovers across the country to open their homes temporarily to animals in need.

New York City-based content creator Isabel Klee is known for fostering some of the hardest-to-place dogs. She's written a memoir, "Dogs, Boys, And Other Things I've Cried About."

The Bissell Pet Foundation is stepping up to help with its "Empty the Shelters" Spring national adoption event, which is currently underway.