National Adopt A Shelter Pet Day is celebrated across the nation this year on Saturday, April 30 — and it's the perfect opportunity to learn tips and insights for how to handle a furry new addition once a family, a couple or an individual has made the very big decision to adopt a pet this way.

Shelters across the nation right now "are over-capacity and highly adoptable pets are at risk as we face one of the largest crises in recent years," said Cathy Bissell, a Michigan native and founder of the Bissell Pet Foundation, in a news release. 

dog at the park

This dog is having a grand old time at the park with its family. If you're considering adopting a dog from a shelter this year, check out the smart tips and insights shared here.  (Credit: iStock)

Bissell founded her group in 2011 with a goal of getting dogs out of shelters and into good homes.

Among the tips shared on "Fox & Friends Weekend" on Saturday morning: Shelter dogs who are newly adopted need time. Lots of time.

They need time to adjust to their new surroundings and their new family after living in a shelter, said celebrity dog trainer Tom Davis.

dog

National Adopt A Shelter Pet Day is Saturday, April 30 — and plenty of people are taking the plunge into pet ownership.   (iStock)

Also — they need exercise, he said.

"Exercise is really important. A lot of dogs, especially in shelters, or in organizations where they don't get to come out and do this — they don't have adequate exercise," said Davis. 

So "making sure they get up to speed and are able to become a dog" is really vital to know for anyone adopting a shelter dog.

Young smiling man affectionate with his dog

Owning a dog can help boost your health, some studies show.  (iStock)

Davis also stressed routine — and how important that is.

He said that domesticated animals "do really well with routine."

SECOND-GRADERS WRITE HEARTFELT LETTERS FROM SHELTER DOGS' PERSPECTIVE TO HELP THEM GET ADOPTED

He also said, "Training is really important … It's big" for them. They need to know the lay of the land in terms of what they can and cannot do.

His fifth tip for new dog owners to understand is leadership. 

cat

A cat is shown peeking its head out of a box in this image. Scores of shelters across the nation have cats ready for adoption as well. 

Dogs need to be taught who's in charge — and what that means for them.

"Teaching them, 'Hey, I got you, I'm in charge, I'll show you what you can and can't do'" is critical for dogs to learn from their new owners, he said.

FAMILIES VISTING BRONX ZOO HAVE AMAZING SIGHT TO SEE: RARE BABY TREE KANGAROO

Dogs, of course, are far from the only animals that are available for adoption at shelters.

Cats, rabbits and many other types of animals also need good and caring homes.

CLICK HERE TO GET THE FOX NEWS APP

For those unable to adopt an animal, many shelters gratefully accept donations of dog and cat food, supplies, old blankets and other such materials and goods. Check with your local shelter for details.

For more information about what to know when adopting a shelter dog, check out the video at the top of this article, or click here to access it