Zoo Babies: Nashville Zoo welcomes adorable cotton-top tamarins

Pablo and Virginia are the newest cotton-top tamarins at the Nashville Zoo. The twin's birth on April 20th was the third for their parents and brought the establishment's cotton-top tamarin population to six.

While the species is known to have a high infant mortality rate, Pablo and Virginia's mom and dad helped to ensure their survival, a move unusual for male cotton-top tamarins. 

At only 5-months-old, the monkeys have already developed their individual personalities to differentiate themselves from the rest of the zoo's other monkeys. While Pablo is much more investigative and explorative, Virginia is much more reserved and cautious, a characteristic that is easy to notice, according to zookeepers.

"At this point in time, the infants are pretty inseparable from each other," explained primate keeper Hollie Wiegand to AOL Lifestyle. However, as they grow older, both will gain greater confidence and less dependent on each other and their family group! 

See more of Pablo and Virginia in the video above! 

RELATED: See more of the monkeys below

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Cotton Top Tamarins
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Cotton Top Tamarins
AUSTRIA, Vienna : Three cotton-top tamarins, small New World monkeys, rest in a rain forest section of the Haus Des Meeres building in Vienna, Austria on June 9, 2015. Haus Des Meeres, built during the World War II as one of the four Vienna’s anti aircraft gun and battle towers, hosts an Aqua-Terra Zoo where visitors also can get a view of the city from the 9th floor open air terrace. (Photo credit should read JOE KLAMAR/AFP/Getty Images)
A Cotton-Top Tamarin inspects it Christmas cracker as they discover some gift-wrapped food treats and other tasty decorations in their exhibit at Taronga Zoo, in Sydney on December 9, 2014. Animals at the zoo were quick to pounce on the festive-themed enrichment items prepared by keepers, showing off their natural foraging skills to uncover the food inside while some seemed just as happy playing with the cardboard box packaging. AFP PHOTO/William WEST (Photo credit should read WILLIAM WEST/AFP/Getty Images)
BOSTON, MA - MARCH 16: A baby cotton-top tamarin, born at Franklin Park Zoo on March 3, clings to its mother, Wilma at the zoo in Boston on Mar. 16, 2017. The baby, whose sex is not yet known, was born as part of the zoos effort to increase its population of cotton-top tamarins, which are among the most endangered primates in the world, according to the Wildlife Conservation Network. (Photo by David L. Ryan/The Boston Globe via Getty Images)
ROME, ITALY - NOVEMBER 03: A Cotton Top Tamarin monkey is seen inside the new area dedicated to the world's smallest monkeys at the Bioparco on November 3, 2011 in Rome, Italy. The area, dedicated to the world's smallest monkeys, contains four Usit, two Tamarin Emperor and two Cotton Top Tamarins that are part of the EEP, the European Programme for the conservation of species. (Photo by Giorgio Cosulich/Getty Images)
ROME, ITALY - NOVEMBER 03: A Cotton Top Tamarin monkey is seen inside the new area dedicated to the world's smallest monkeys at the Bioparco on November 3, 2011 in Rome, Italy. The area, dedicated to the world's smallest monkeys, contains four Usit, two Tamarin Emperor and two Cotton Top Tamarins that are part of the EEP, the European Programme for the conservation of species. (Photo by Giorgio Cosulich/Getty Images)
A Cottontop Tamarin monkey (Saguinus oedipus) born in captivity one month ago is seen beside its mother on November 6, 2009 at the Santa Fe Zoo, in Medellin, Antioquia Department, Colombia. AFP PHOTO/Raul ARBOLEDA (Photo credit should read RAUL ARBOLEDA/AFP/Getty Images)
Two Cottontop Tamarin monkeys (Saguinus oedipus) born in captivity one month climb to their mother's back on November 6, 2009 at the Santa Fe Zoo, in Medellin, Antioquia Department, Colombia. AFP PHOTO/Raul ARBOLEDA (Photo credit should read RAUL ARBOLEDA/AFP/Getty Images)
A two-week old baby Cottontop Tamarin monkey rests on the back of its father at the Jerusalem Zoo on November 10, 2008. The Cottontop Tamarin can now only be found in the tropical forests of Colombia. The species is critically endangered, with less than 1000 in the wild and only about 1800 in captivity. AFP PHOTO/JONATHAN NACKSTRAND (Photo credit should read JONATHAN NACKSTRAND/AFP/Getty Images)
A two-week old baby Cottontop Tamarin monkey rests on the back of its father at the Jerusalem Zoo on November 10, 2008. The Cottontop Tamarin can now only be found in the tropical forests of Colombia. The species is critically endangered, with less than 1000 in the wild and only about 1800 in captivity. AFP PHOTO/JONATHAN NACKSTRAND (Photo credit should read JONATHAN NACKSTRAND/AFP/Getty Images)
A 12 week old Cotton-top Tamarin Monkey, one of two new arrivals, hitches a ride on its fathers back as it explores its new surroundings.Twin monkeys belonging to a species threatened with extinction were exploring their new surroundings after being born at the British zoo. (Photo by Chris Radburn - PA Images/PA Images via Getty Images)
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