Harmony, a 10-month-old chihuahua, is a mother of four — but they're not all puppies.

CBS Sacramento reports that a pet rescue foundation in Folsom, Calif., discovered the mother of two puppies had a lot of love to give. Soon after rescuing Harmony and her two pups from a shelter, the group also rescued two kittens who were going to be put down -- and who still needed a lot of nurturing.

"[The kittens] were crying, they were hungry and Harmony really started to panic, so I put them in with her puppies and she immediately took to them," said one of the foundation employees in a video.

"She's actually really happy that she has these babies," another worker told CBS Sacramento, "All [Harmony] knows is these are babies that need to be taken care of," she later added.

Harmony isn't the only giving pup who's taken it upon herself to raise another animal's children. Alabama resident Elbert Bristow orphaned four kittens when he accidentally ran over their mother. He gathered the kittens together and brought them to his 2-year-old dog Molly — who had recently given birth — and was surprised when she took them in as her own.

"[Molly lays down and lets them eat. It is unusual, very unusual," Bristow told the Dothan Eagle.

In a somewhat different situation, two baby red pandas were rejected by their mother at a Dutch zoo, but one of the zookeeper's house cats took the babies in along with her new litter of kittens and gave them a chance at life.

For more instances of animal moms who adopted babies of other species, check out the slideshow below:

Loading Slideshow...
  • Mom Cat Adopts Red Panda Cubs

    <a href="http://news.bbc.co.uk/2/hi/europe/7498895.stm" target="_hplink">According to BBC News</a>, a Dutch zookeeper's cat adopted two baby red pandas after the cubs were rejected by their mother. The cat -- which had just given birth to a litter of her own kittens -- nursed the panda cubs alongside her own babies, giving them a chance of survival. The red panda is an endangered species that lives in Himalayan regions in China, Bhutan, Nepal, India, and Burma.

  • Mom Cat Adopts Squirrel, Teaches It To Purr

    A rescued mother cat named Emmy adopted an animal in need of its own -- a baby squirrel named Rocky who fell out of a tree, <a href="http://www.huffingtonpost.com/2010/09/10/cat-adopts-squirrel-teach_n_712377.html" target="_hplink">The Huffington Post reports. </a> After Rocky was rescued by Emmy's owners and included in her litter, the mother cat immediately took to the little guy and cared for him as if he were one of her own. Incredibly, after being nursed back to health by his new mom, Rocky learned how to purr, just like the other kittens.

  • Golden Retriever Mom Adopts Three Bengal Tigers

    Isabella, a golden retriever, adopted three white bengal tiger cubs after their mother abandoned them at a rural Kansas zoo, <a href="http://today.msnbc.msn.com/id/31541834/ns/today-today_pets_and_animals/t/tigers-say-bye-mom-dog-raised-them/#.T6BZGcRYvMA" target="_hplink">MSNBC reports.</a> The white bengal tigers thrived on Isabella's milk and grew into strong adults.

  • Cat Adopts Baby Raccoon

    It was love at first sight for a mother cat and baby raccoon that -- by a stroke of serendipity -- were placed together in the same cage at the Jonesboro Animal Control, <a href="http://www.huffingtonpost.com/2012/04/03/mother-cat-jj-adopts-baby_n_1400863.html#s839858&title=Cat_Adopts_Three" target="_hplink">The Huffington Post reports. </a> Last month, a 10-month-old cat named J.J. arrived at the shelter in Jonesboro, Ark., with two tiny kittens in tow. On the very same day, a 2-week-old baby raccoon -- now called 'Bandit' -- was rescued by an Animal Control officer. The raccoon was having trouble eating and so, the officer placed it next to J.J., hoping that the mother cat would take to the little animal. J.J.'s maternal instincts quickly kicked in and she immediately started nursing and cleaning the little fellow, <a href="http://www.journalgazette.net/article/20120403/BLOGS22/120409885" target="_hplink">Associated Press reports.</a>

  • Cat Adopts Wolf-Cub

    A wolf-cub in a Siberian zoo was adopted by a cat after it was rejected by its mother and was on the brink of death, <a href="http://www.youtube.com/watch?v=kWR_mLFo1-k" target="_hplink">RT News reports.</a>

  • Dog Adopts Farrow Of Wild Boat Piglets

    A French bulldog named Baby has adopted six orphaned wild boar piglets after finding them in a forest near Berlin,<a href="http://www.youtube.com/watch?v=MO9FBW8Dlus" target="_hplink"> ITN News reports.</a>

  • Rescue Dog Adopts Baby Raccoon

    "She's his momma," said veterinarian Dr. Kelly Hogan, referring to Sasha -- the rescue dog who adopted an orphaned baby raccoon. <a href="http://www.foxillinois.com/news/top-stories/Dog-rescues-baby-raccoon--121633389.html" target="_hplink">Fox News reports</a> that after Sasha was saved from the brink of death by a local rescue group, the dog soon returned the favor when she took in a baby raccoon that was brought to the same shelter, nursing it back to health and treating it as her own.

  • Cat Adopts Three Puppies

    <a href="http://www.youtube.com/watch?feature=player_embedded&v=iUaHLdzSgpo" target="_hplink">According to U-Zoo</a>, a cat took it upon herself to nurse and protect three puppies after they lost their mom.