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Friday, 8 March 2013

World’s oldest known living gives birth at age 62

The oldest known living wild bird in the world has given birth to a healthy hatchling. The 62-year-old bird, “Wisdom,” last made top facts in 2011, when the albatross survived the aftermath of the Japanese tsunami.
Wisdom has defied the odds in many aspects: She’s already lived nearly twice as long as the average Laysan albatross. She was given her name after being tagged by a U.S. Geological Survey researcher in 1956. The USGS said in a statement that since being tagged, Wisdom has flown an estimated 2 million to 3 million miles, or “four to six trips from the Earth to the Moon and back again with plenty of miles to spare.”
“To know that she can still successfully raise young at age 60-plus, which is beyond words,” USGS bird banding program Chief Bruce Peterjohn said. “While the process of banding a bird has not changed greatly during the past century, the information provided by birds marked with a simple numbered metal band has transformed our knowledge of birds.”
And while there have been other albatross birds spotted in the wild who are estimated to be around 50 years old, Wisdom is the only one on record to have given birth at such an advanced age. Though, some scientists may have seen the feat coming, when Wisdom gave birth two years ago to another chick, and has given birth to a total of five chicks since 2006.
The retired USGS scientist Chandler Robbin, who was in his 40s when he first banned Wisdom in 1956 stresses that while he have grown old and gray and get around only with the use of a cane, wisdom still looks and acts just the same as on the day he banned her.
In 2001, Robbins “rediscovered” Wisdom, helping the USGS determine her age and track her record-setting reproductive habits.
Because the Laysan albatross mates for life, USGS officials estimate that Wisdom has had to take on several “much younger” male partners over the years to help foster an estimated 35 chicks.
“I’m trying to straighten out the record,” Robbins added. “It takes a lot.”

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