This week, the world learned more about what may be the first-ever liliger. Born last month at a zoo in Russia, Kiara is the offspring of a lion and a liger -- which is a cross between a lion and a tiger. Find images of Kiara the liliger in the slideshow below, and read more here.

This was also a good week for animal rescue news. In this video, a "hero" pigs saves a baby goat from drowning. Students in Australia rescued a koala from a mine shaft, twice. After climbing out on a branch, the animal fell back down and had to climb up again.

In Florida, a 66-year-old man rescued his pet dog by wrestling a 130-pound alligator. Steve Gustafson told the Orlando Sentinel, “For whatever reason, I don’t know, I just yelled, ‘You’re not going to get her!’ and just leaped on the gator… just like you do some silly belly flop in a pool. The only difference was I landed on top of a gator.”

Elsewhere in the Sunshine State, a field biologist helped recuse a rare white sea turtle hatchling that was too weak to swim on its own. Brought to the Marine Science Center in Volusia County, the turtle recuperated and was soon released into the wild.

Oscar nominated actor Casey Affleck recently teamed up with PETA to expose the "inhumane" practice of dehorning dairy cows. Watch the graphic video featuring Affleck here.

Below, find some of this week's cutest and most captivating animal photos:

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  • A zookeeper holds a Amur tiger cub (<em>Panthera tigris altaica</em>), also known as the Siberian tiger, during weighing in the Leipzig Zoo in Leipzig, central Germany Thursday, Sept. 20, 2012. Two Amur tiger babies were born on July 20, 2012. The still nameless tigers have achieved a weight of about 9 kilogram in the meantime. The Amur tiger is the largest living felid. (AP Photo/Jens Meyer)

  • A baby two-toed sloth (<em>Choloepus</em>) yawns at the Aiunau Foundation in Caldas, some 25 km south of Medellin, Antioquia department, Colombia on September 15, 2012. Croatian scientist Tinka Plese created the foundation 10 years ago, where sloths --which have been captured by illegal wildlife traffickers and then sold to people between US40 to 150 dollars-- are rescued, rehabilitated and released. More than 700 sloths have been released to date. AFP PHOTO/Raul ARBOLEDA

  • Mawimbi, a western lowland gorilla cub lies in the arm of its mother Mamitu in the Zoo of Zurich, Switzerland, Wednesday, Sept. 19, 2012. (AP Photo/Keystone, Alessandro Della Bella)

  • Chimpanzee Ruben takes a ride on the back of his surrogate mother, Kito, at the Oklahoma City Zoo in Oklahoma City, Monday, Sept. 17, 2012. Ruben’s mother, Rukiya, died just 24 hours after giving birth during a medical procedure. After being hand-raised at Tampa's Lowry Park Zoo, 7-month-old Ruben arrived at the Oklahoma City Zoo on July 30, 2012, and is slowly being introduced to the other members of his chimp family. (AP Photo/Sue Ogrocki)

  • Female liliger cub Kiara, a hybrid between a lion and a ligress, at the Novosibirsk Zoo, in Novosibirsk, eastern Sibiria, Wednesday, Sept. 19, 2012. Kiara is the first female liliger born over a month ago at the Novosibirsk Zoo. Kiara's mother, Zita, stopped producing milk almost immediately after giving birth, so Zoo employees placed Kiara in a separate facility and feed her with a special milk mix. The cub plays with a house cat which also provides motherly warmth. (AP Photo /Ilnar Salakhiev)

  • Female liliger cub Kiara, a hybrid between a lion and a ligress, plays at the Novosibirsk Zoo, in Novosibirsk, eastern Sibiria, Wednesday, Sept. 19, 2012. Kiara is the first female liliger born over a month ago at the Novosibirsk Zoo. Kiara's mother, Zita, stopped producing milk almost immediately after giving birth, so Zoo employees placed Kiara in a separate facility and feed her with a special milk mix. The cub plays with a house cat which also provides motherly warmth. (AP Photo /Ilnar Salakhiev)

  • In this photo provided by the San Diego Zoo showing the panda cub at the San Diego Zoo during his fifth veterinary exam on Friday Sept.20,2012. The male panda, born on July 29, 2012, weighed 4.9 pounds (2.26 kilograms), nearly a pound more than he weighed during the last exam. Veterinarians recorded that the cubís eyes are almost open now and believe the cub can see but is likely limited to viewing light and shadows. The San Diego Zoo follows the Chinese cultural tradition of naming the giant panda after it is 100 days old. (AP Photo/San Diego Zoo/Tammy Spratt)

  • A baby monkey at the 'Rosy Walter' zoo, in El Picacho, north of Tegucigalpa, on September 18, 2012. AFP PHOTO/Orlando SIERRA.

  • Chimpanzee Ruben plays on his surrogate mother, Kito, at the Oklahoma City Zoo in Oklahoma City, Monday, Sept. 17, 2012. Ruben’s mother, Rukiya, died just 24 hours after giving birth during a medical procedure. After being hand-raised at Tampa's Lowry Park Zoo, 7-month-old Ruben arrived at the Oklahoma City Zoo on July 30, 2012, and is slowly being introduced to the other members of his chimp family. (AP Photo/Sue Ogrocki)

  • A Sri Lankan painted stork catches a fish in the Yala National Park in the southern district of Yala around 250 kms southwest of Colombo on September 16, 2012. Yala National Park is the most visited and second largest national park in Sri Lanka. AFP PHOTO/ Ishara S. KODIKARA

  • Female liliger cub Kiara, a hybrid between a lion and a ligress, at the Novosibirsk Zoo, in Novosibirsk, eastern Sibiria, Wednesday, Sept. 19, 2012. Kiara is the first female liliger born over a month ago at the Novosibirsk Zoo. Kiara's mother, Zita, stopped producing milk almost immediately after giving birth, so Zoo employees placed Kiara in a separate facility and feed her with a special milk mix. The cub plays with a house cat which also provides motherly warmth. (AP Photo /Ilnar Salakhiev)

  • Female liliger cub Kiara, a hybrid between a lion and a ligress, plays with a cat at the Novosibirsk Zoo, in Novosibirsk, eastern Sibiria, Wednesday, Sept. 19, 2012. Kiara is the first female liliger born over a month ago at the Novosibirsk Zoo. Kiara's mother, Zita, stopped producing milk almost immediately after giving birth, so Zoo employees placed Kiara in a separate facility and feed her with a special milk mix. (AP Photo /Ilnar Salakhiev)

  • Female liliger cub Kiara, a hybrid between a lion and a ligress, plays at the Novosibirsk Zoo, in Novosibirsk, eastern Sibiria, Wednesday, Sept. 19, 2012. Kiara is the first female liliger born over a month ago at the Novosibirsk Zoo. Kiara's mother, Zita, stopped producing milk almost immediately after giving birth, so Zoo employees placed Kiara in a separate facility and feed her with a special milk mix. The cub plays with a house cat which also provides motherly warmth. (AP Photo /Ilnar Salakhiev)

  • HONDURAS-MONKEY-FEATURE

    A monkey and its baby monkey at the 'Rosy Walter' zoo, in El Picacho, north of Tegucigalpa, on September 18, 2012. AFP PHOTO/Orlando SIERRA.

  • Amur tiger twin cubs (<em>Panthera tigris altaica</em>), also known as the Siberian tiger, sit side by side during a press presentation in the Leipzig Zoo in Leipzig, central Germany Thursday, Sept. 20, 2012. The two Amur tiger babies were born on July 20, 2012. The still nameless tigers have achieved a weight of about 9 kilogram in the meantime. The Amur tiger is the largest living felid. (AP Photo/Jens Meyer)

  • Female hippopotamus Mali, or Jasmine, eats fruits and vegetable presented for her 46th birthday celebration, at Dusit Zoo in Bangkok, Thailand, Friday, Sept. 21, 2012.(AP Photo/Sakchai Lalit)

  • A leopard walks through the bush at Yala National Park in the southern district of Yala around 250 kms southwest of Colombo on September 16, 2012. Yala National Park is the most visited and second largest national park in Sri Lanka. AFP PHOTO/ Ishara S. KODIKARA

  • A man shows his dog on September 16, 2012 at Kungstradgarden in Stockholm during an event called 'Stockholm's Dog Day', where people brought their dogs to take part in different activities. AFP PHOTO/JONATHAN NACKSTRAND

  • A dog is seen on September 16, 2012 at Kungstradgarden in Stockholm during an event called 'Stockholm's Dog Day', where people brought their dogs to take part in different activities. AFP PHOTO/JONATHAN NACKSTRAND

  • A leopard drinks at Yala National Park in the southern district of Yala around 250 kms southwest of Colombo on September 16, 2012. Yala National Park is the most visited and second largest national park in Sri Lanka. AFP PHOTO/ Ishara S. KODIKARA

  • An eagle flies at the Yala National Park in the southern district of Yala around 250 kms southwest of Colombo on September 16, 2012. Yala National Park is the most visited and second largest national park in Sri Lanka. AFP PHOTO/ Ishara S. KODIKARA

  • PASADENA, CA - SEPTEMBER 16: Bullseye the Target dog arrives at the 2012 NCLR ALMA Awards at Pasadena Civic Auditorium on September 16, 2012 in Pasadena, California.

  • Cows stand close to wind turbines on September 18, 2012 in Husum, northern Germany, where is taking place the HUSUM WindEnergy 2012 fair. The international trade fair for the wind energy sector opens its doors from September 18 to 22, 2012. AFP PHOTO / JOHANNES EISELE

  • NEW YORK, NY - SEPTEMBER 22: Dogs participate in the annual 'Bark in the Park' prior to a game between the New York Mets and the Miami Marlins at Citi Field on September 22, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Trautwig/Getty Images)

  • TO GO WITH AFP STORY BY BERTRAND BOLLENBACH A swallow arrives to feed up its young in their nest, on September 18, in Hamel, northern France. Alarmed by a 2010 report from the Museum d'histoire naturelle (the French Natural history museum) which estimated that swallows' population in France decreased of 40 per cent since 1989, the Ligue de protection des oiseaux, a birds protection league, launched last spring a new census scheduled over two years. According to ornithologists, the causes of the decline are agriculture and urban development practices. AFP PHOTO PHILIPPE HUGUEN

  • LUSS, UNITED KINGDOM - SEPTEMBER 19: Susan Gell and Roy Rodgers excercise their horse, Shoshoni, in Loch Lomond on September 19, 2012 in Luss, Scotland. Roy and Susan both live on Inchtavannaich Island on Loch Lomond and regularly take their horses to the mainland for exercise by letting the horse swim across the water. Loch Lomond is the largest freshwater loch in Scotland with about thirty islands. (Photo by Jeff J Mitchell/Getty Images)

  • A Franco-austral whale surfaces off the coast of Arachania, Rocha, 225 km east of Montevideo, Uruguay, on September 21, 2012 during the migration to the south in search of warmer waters to mate. AFP PHOTO/Pablo PORCIUNCULA

  • A franco-austral whale surfaces off the coast of Antoniopolis, in the Uruguayan department of Rocha, 220 km east of Montevideo, on September 22, 2012 during the migration to the south in search of warmer waters to mate. AFP PHOTO/Pablo PORCIUNCULA

  • A franco-austral whale surfaces off the coast of Antoniopolis, in the Uruguayan department of Rocha, 220 km east of Montevideo, on September 22, 2012 during the migration to the south in search of warmer waters to mate. AFP PHOTO/Pablo PORCIUNCULA

  • NEW YORK, NY - SEPTEMBER 22: Dogs participate in the annual 'Bark in the Park' prior to a game between the New York Mets and the Miami Marlins at Citi Field on September 22, 2012 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Alex Trautwig/Getty Images)

  • In this photo taken Thursday, Sept. 20, 2012, a white rhino grazes in Nairobi National Park, Kenya. Seeing a dire situation grow worse, the animal conservation group the World Wildlife Fund (WWF) enlisted religious leaders on Thursday, Sept. 20, 2012 in the fight to end the slaughter of Africa's elephants and rhinos by poachers, hoping that religion can help save some of the world's most majestic animals. (AP Photo/Ben Curtis)

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