This week saw several good stories emerge from the animal world. In Costa Rica, national park rangers rescued an endangered green sea turtle that was hooked by "pirate fisherman," reported LiveScience. The turtle was tagged with a satellite transmitter and released.

Ruben, a young chimpanzee that was left without a suitable caretaker after his mother died, has found a surrogate family at the Oklahoma City Zoo. The chimp has been taken in by Kito, a female chimpanzee that has served as surrogate mother to others in the past. Check out pictures of little Ruben here.

Deep below the surface of the Atlantic, researchers have discovered a new species of acorn worm that bears a resemblance to an iconic "Star Wars" character. The Yoda worm (Yoda purpurata) "has large lips on either side of its head region that reminded researchers of the floppy-eared 'Stars Wars' character," explained OurAmazingPlanet.

An orangutan in Indonesia named Pelangsi is being prepared for release after recovering from an amputation earlier this year. The ape was successfully rescued this spring, but has spent several months in rehabilitation after his arm was amputated in May. Rescuers had found him trapped in a snare.

Below, check out some of the week's best animal photos:

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  • In this Sept. 23, 2012 photo provided by Utah's Hogle Zoo, mother giraffe Kipenzi licks her baby girl shortly after birth. The new baby giraffe and her mother went on display at Utah's Hogle Zoo for the first time on Oct. 3, 2012. (AP Photo/Utah's Hogle Zoo)

  • This image provided by the San Diego Zoo shows a cub panda during a routine medical exam Thursday Oct. 4, 2012 at the zoo in San Diego. The 9-week-old panda cub at the San Diego Zoo was more alert during his exam this week. The cub's eyes are completely open now and his sight continues to improve, allowing him to be more aware of his surroundings. His growth is on track with other giant pandas born at the San Diego Zoo. (AP Photo/San Diego Zoo, Ken Bohn)

  • Two North Chinese Leopard cubs (Panthera pardus japonensis) look out of a basket as they are presented for first time to the public at the Tierpark Zoo in Berlin, Friday, Oct. 5, 2012. The North Chinese Leopard twins were born on Aug. 4, 2012. (AP Photo/Markus Schreiber)

  • One of two North Chinese Leopard cubs sits on a tree as they were presented for the first time to public at the Tierpark Zoo in Berlin, Friday, Oct. 5, 2012. The North Chinese Leopard twins were born on Aug. 4, 2012. (AP Photo/Markus Schreiber)

  • Two North Chinese Leopard cubs (Panthera pardus japonensis) look out of a basket as they are presented for first time to the public at the Tierpark Zoo in Berlin, Friday, Oct. 5, 2012. The North Chinese Leopard twins were born on Aug. 4, 2012. (AP Photo/Markus Schreiber)

  • A wild macaque monkey hangs from a tyre in the suburbs of Kuala Lumpur on October 2, 2012. The long-tailed macaques can be found in the suburbs of Kuala Lumpur. AFP PHOTO / MOHD RASFAN

  • A Brazilian Gamba (<em>Didelphis aurita</em>) is seen during the celebration of Saint Francis of Assisi feast at Riozoo in Rio de Janeiro on October 04, 2012. AFP PHOTO/VANDERLEI ALMEIDA

  • A wild macaque monkey hangs from a tyre in the suburbs of Kuala Lumpur on September 2, 2012. The long-tailed macaques can be found in the suburbs of Kuala Lumpur. AFP PHOTO / MOHD RASFAN

  • Rosie the gorilla carries her grandson Hadari on her back at the Henry Doorly Zoo in Omaha, Neb., Friday, Oct. 5, 2012. (AP Photo/Nati Harnik)

  • A wild macaque baby monkey suckles milk from its mother (L) in the suburbs of Kuala Lumpur on September 2, 2012. The long-tailed macaques can be found in the suburbs of Kuala Lumpur. AFP PHOTO / MOHD RASFAN

  • Goliath, a baby rhinoceros born on September 18, walks in his pen on October 4, 2012, in the zoological park of Peaugres, central France. Goliath is the first rhino to be born in a French zoo this year and the third in Europe. AFP PHOTO/PHILIPPE DESMAZES

  • EDINBURGH, SCOTLAND - OCTOBER 03: One of Edinburgh Zoo's short clawed otter pups calls out from the hide in the enclosure on October 3, 2012 in Edinburgh,Scotland. The five otters are from the smallest otter species in the world and the pups born to mum Elena and Dad Ray are around 10 weeks old now, and are their third litter since arriving at the zoo. A native to Southeast Asia, this particular otter will weigh just 3.5kg when fully grown. These water loving animals are known for their extremely agile, hand-like front paws that are complete with short claws giving these otters their name. Using these dexterous paws they can easily tackle a variety of prey, including crabs, snails, molluscs, small fish and insects. Like other otter species they use their strong rudder-like tail to navigate and propel them through the water. (Photo by Jeff J Mitchell/Getty Images)

  • Duma, a female white rhino looks on in her pen on October 4, 2012, in the zoological park of Peaugres, central France. Duma gave birth on September 18 to Goliath, the first baby rhino to be born in a French zoo this year and the third in Europe. AFP PHOTO/PHILIPPE DESMAZES

  • Surfer Joey watches the competition during the annual Surf City Surf Dog competition at Huntington Beach in California on September 30, 2012. Some 48 dogs took part in the event, watched by 1,500 spectators. AFP PHOTO/JOE KLAMAR

  • Goliath, a baby rhinoceros born on September 18, runs next to his mother on October 4, 2012, in the zoological parc of Peaugres, central France. Goliath is the first rhino to be born in a French zoo this year and the third in Europe. AFP PHOTO/PHILIPPE DESMAZES

  • SYDNEY, AUSTRALIA - OCTOBER 03: Rex, one of the world's largest crocodiles sits in the water prior to being fed at WILD LIFE Sydney Zoo on October 3, 2012 in Sydney, Australia. The 700kg crocodile ate his first meal today, after three months in hibernation. (Photo by Cameron Spencer/Getty Images)

  • KINGSBARNS, SCOTLAND - OCTOBER 05: A dog runs off with Paul Casey's ball in his mouth on the 12th green during the second round of The Alfred Dunhill Links Championship at Kingsbarns Golf Links on October 5, 2012 in Kingsbarns, Scotland. (Photo by Ross Kinnaird/Getty Images)

  • A 700 kilogram crocodile called Rex - who is one of the world’s largest crocodiles - cruises around his enclosure after receiving his first feed after emerging from three months of hibernation at WILD LIFE Sydney Zoo on October 3, 2012. Throughout winter, it is common for crocodiles to enter a period of inactivity where they survive on their existing energy stores inside their body but once the weather starts warming up, so does their appetite – to indicate their need to replenish their energy. Rex, who has been a resident of WILD LIFE Sydney Zoo since 2009, was a so-called ‘rogue’ crocodile who was captured and placed into a crocodile farm near Darwin in the Northern Territory when his taste for local pet dogs drew him too close to the human population. AFP PHOTO/William WEST

  • EDINBURGH, SCOTLAND - OCTOBER 03: One of Edinburgh Zoo's short clawed otter pups ventures out in their enclosure on October 3, 2012 in Edinburgh,Scotland. The five otters are from the smallest otter species in the world and the pups born to mum Elena and Dad Ray are around 10 weeks old now, and are their third litter since arriving at the zoo. A native to Southeast Asia, this particular otter will weigh just 3.5kg when fully grown. These water loving animals are known for their extremely agile, hand-like front paws that are complete with short claws giving these otters their name. Using these dexterous paws they can easily tackle a variety of prey, including crabs, snails, molluscs, small fish and insects. Like other otter species they use their strong rudder-like tail to navigate and propel them through the water. (Photo by Jeff J Mitchell/Getty Images)

  • Camels having feed during the World Animal Day on Thursday Oct. 4, 2012 in Korkeasaari Zoo in Helsinki, Finland. (AP Photo/LEHTIKUVA / Jarno Mela) FINLAND OUT

  • EDINBURGH, SCOTLAND - OCTOBER 03: One of Edinburgh Zoo's short clawed otter pups ventures out in their enclosure on October 3, 2012 in Edinburgh,Scotland. The five otters are from the smallest otter species in the world and the pups born to mum Elena and Dad Ray are around 10 weeks old now, and are their third litter since arriving at the zoo. A native to Southeast Asia, this particular otter will weigh just 3.5kg when fully grown. These water loving animals are known for their extremely agile, hand-like front paws that are complete with short claws giving these otters their name. Using these dexterous paws they can easily tackle a variety of prey, including crabs, snails, molluscs, small fish and insects. Like other otter species they use their strong rudder-like tail to navigate and propel them through the water. (Photo by Jeff J Mitchell/Getty Images)

  • EDINBURGH, SCOTLAND - OCTOBER 03: Edinburgh Zoo's short clawed otter pups venture out in their enclosure on October 3, 2012 in Edinburgh,Scotland. The five otters are from the smallest otter species in the world and the pups born to mum Elena and Dad Ray are around 10 weeks old now, and are their third litter since arriving at the zoo. A native to Southeast Asia, this particular otter will weigh just 3.5kg when fully grown. These water loving animals are known for their extremely agile, hand-like front paws that are complete with short claws giving these otters their name. Using these dexterous paws they can easily tackle a variety of prey, including crabs, snails, molluscs, small fish and insects. Like other otter species they use their strong rudder-like tail to navigate and propel them through the water. (Photo by Jeff J Mitchell/Getty Images)

  • Goliath, a baby rhinoceros born on September 18, looks on in his pen on October 4, 2012, in the zoological park of Peaugres, central France. Goliath is the first rhino to be born in a French zoo this year and the third in Europe. AFP PHOTO/PHILIPPE DESMAZES

  • A moose saunters across the Snake River October 4, 2012 in the Grand Teton National Park in Wyoming. Grand Teton National Park is located in northwestern Wyoming. Approximately 310,000 acres (130,000 ha) in size, the park includes the major peaks of the 40-mile (64 km) long Teton Range as well as most of the northern sections of the valley known as Jackson Hole. AFP PHOTO/Karen BLEIER

  • A mule deer in the brush October 4, 2012 in the Grand Teton National Park in northwestern Wyoming. Approximately 310,000 acres (130,000 ha) in size, the park includes the major peaks of the 40-mile (64 km) long Teton Range as well as most of the northern sections of the valley known as Jackson Hole. AFP PHOTO/Karen BLEIER

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