The World's Last Male Northern White Rhino Has Died, But Could He Still Help Save the Species?

Tony Karumba, AFP/Getty Images
Tony Karumba, AFP/Getty Images

Following age-related complications, Sudan the northern white rhinoceros was euthanized by a team of vets in Kenya at 45 years old, CNN reports. He was one of only three northern white rhinos left on earth and the last male of his subspecies. For years, Sudan had represented the final hope for the survival of his kind, but now scientists have a back-up plan: Using Sudan's sperm, they may be able to continue his genetic line even after his death.

Northern white rhino numbers dwindled from 2000 in 1960 to only three in recent years. Those last survivors, Sudan, his daughter Najin, and granddaughter Fatu, lived together at the Ol Pejeta Conservancy in Kenya. Each animal had physical issues making it difficult for them to breed, and now with Sudan gone, a new generation of northern white rhinos looks even less likely.

But there is one way the story of these animals doesn't end in extinction. Before Sudan died, researchers were able to save some of his genetic material, which means it's still possible for him to father offspring. Scientists may either use the sperm to artificially inseminate one of the surviving females (even though they're related) or, due to their age and ailments, fertilize one of their eggs and implant the embryo into a female of a similar subspecies, like the southern white rhino, using in vitro fertilization.

"We must take advantage of the unique situation in which cellular technologies are utilized for conservation of critically endangered species," Jan Stejskal, an official at the Dvur Kralove Zoo in the Czech Republic where Sudan lived until 2009, told AFP. "It may sound unbelievable, but thanks to the newly developed techniques even Sudan could still have an offspring."

Poaching has been a major contributor to the northern white rhino's decline over the past century. Rhinos are often hunted for their horns, which are believed to have medicinal properties in some Asian cultures. (Other people just view the horn as a sign of wealth and status.) Procreating is the biggest issue threatening the northern white rhinoceros at the moment. If such poaching continues, other rhino species in the wild could end up in the same situation.

[h/t CNN]

100 Dachshunds Competed in Cincinnati’s Annual ‘Running of the Wieners’

NORRIE3699/iStock via Getty Images
NORRIE3699/iStock via Getty Images

Every year, to kick off Cincinnati’s Oktoberfest Zinzinnati, 100 dachshunds compete in heats to decide who the fastest dachshund in the Midwest is. This year marks the 43rd annual Oktoberfest—one of the biggest Oktoberfest celebrations outside of Germany (more than 500,000 people attend the three-day event).

On the afternoon of Thursday, September 19, 100 wiener dogs (and their owners and handlers) gathered in downtown Cincinnati for the 2019 "Running of the Wieners." The dogs, dressed in hot dog costumes, ran 10 heats, which lasted 75 feet or five seconds each. The winner of each heat advanced to the final round, where the top three finishers were decided.

Maple, a long-haired, one-year-old dachshund, ran his way into first place—and into our hearts.

Maple’s owner, Jake Sander, told WCPO that Maple is one of five dachshunds in the family, and that he learned to run fast by chasing his brother around. Leo and Bucky, two other doxies, placed second and third, respectively.

Besides the Running of the Wieners, Zinzinnati also hosts the World’s Largest Chicken Dance. However, the wiener dogs are more fun to watch.

Photographer Captures Polka-Dotted Zebra Foal in Kenya

Frank Liu
Frank Liu

Zebras are known for their eye-catching patterns, but this polka-dotted foal recently photographed in Kenya's Masai Mara National Reserve really stands out from the herd. As National Geographic reports, the zebra baby likely has pseudomelanism, a rare pigment condition that's been observed in the wild just a handful of times.

Nature photographer Frank Liu saw the zebra foal while looking for rhinos in the savannah wilderness preserve. After initially confusing the specimen for a different type of animal, he realized upon closer inspection that it was actually a plains zebra born with spots instead of stripes. The newborn foal was named Tira after the Maasai guide Antony Tira who first pointed him out.

Zebra foal with spots walking with mother.
Frank Liu

Zebra foal with spots.
Frank Liu

A typical zebra pattern is the result of pigment cells called melanocytes, which are responsible for the black base coat, and melanin, which gives the animal its white stripes. (So if you've ever wondered if zebras are white with black stripes or black with white stripes, the answer is the latter). In Tira and other zebras with pseudomelanism, the melanocytes are fully expressed, but a genetic mutation causes the melanin to appear as dots rather than unbroken stripes.


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Though rare, this isn't the only time a zebra with pseudomelanism has been documented in nature. Pseudomelanistic zebras have also been spotted in Botswana’s Okavango Delta, but Liu believes this could be the first time one was found in the Masai Mara preserve.

Zebra stripes aren't just for decoration. The distinct pattern may act as camouflage, bug repellant, and a built-in temperature regulation system. Without these evolutionary benefits, Tira has a lower chance of making it to adulthood: Pseudomelanistic zebra adults are rarely observed for this reason. But as Liu's photographs show, the foal has the protection and acceptance of his herd on his side.

[h/t National Geographic]

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