Mysterious shark pup hatches in aquarium tank with no males

Are swell sharks aggressive? All we know as a baby shark nicknamed Yoko mysteriously born without a male present
In an unusual turn of events, a baby swell shark named Yoko was born at the Shreveport Aquarium in Louisiana. The shark was born in a tank that had not seen a male shark for over three years.
Baby shark mysteriously born in aquarium tank housing only females
The arrival of a baby swell shark at an aquarium in Louisiana has caused a wave of excitement, after the egg hatched despite the fact that no male sharks appear to have been involved.
Mysterious shark pup hatches in aquarium tank with no males
Officials at a Louisiana aquarium are investigating the mystery of a swell shark baby that hatched despite its mother having no contact with male sharks for at least three years.
This shark pup was born in a habitat without any males. How did that happen?
Yoko the swell shark was born in a habitat of all-female sharks who hadn't seen a male in years. The aquarium has two possible explanations — and hopes to get confirmation in the coming months.
Mystery As Baby Shark Born With No Male Involvement
"It really proves that life... uh... finds a way," said Shreveport Aquarium, Louisina's curator of live animals, Greg Barrick.
Aquarium surprised by shark born in a tank without males
According to the aquarium, the shark egg was first spotted eight months ago. The shark hatched a few weeks ago and the team at the aquarium is working to determine how it was conceived. Once the shark is big enough for a blood draw,
Shark Pup Mysteriously Hatches in Aquarium Tank With Only Females. How Could This Birth Happen?
Experts say the case is either a rare form of asexual reproduction or an instance of (very) delayed fertilization
Aquarium welcomes baby shark after mystery pregnancy
The pup hatched in a tank housing two female sharks who hadn't been around any male sharks in over three years.
Baby shark mysteriously hatches from egg at Louisiana aquarium — with no male in tank
A small shark swimming around a Louisiana aquarium holds a mystery in its DNA. Yoko the swell shark hatched from an egg that was discovered in a puzzling place — an all-female tank, the Shreveport Aquarium announced. “It really proves that life ... uh ... finds a way,” curator Greg Barrick said in a Jan. 24 news release.
'Miracle' in a Louisiana aquarium: a shark is born in a tank where only females were present
Scientists are studying whether a phenomenon called parthenogenesis, a rare form of asexual reproduction, or delayed fertilization, where fertilization occurs long after mating, could have occurred. The birth of a shark in a habitat where there were no male specimens of this species has excited the scientists at the Shreveport Aquarium in the state of Louisiana,
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No males required: shark mother gives birth despite only being surrounded by females
The Shreveport Aquarium in Louisiana has witnessed something remarkable—a newborn shark pup in a tank that only houses female ...
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Surprise 'virgin birth' of swell shark in all-female tank at Louisiana aquarium
Staff at Louisiana's Shreveport Aquarium have been left stumped by the 'virgin birth' of a shark pup. Yoko, a swell shark pup ...
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A shark pup was born in an all-female aquarium tank. How exactly could that happen?
A Louisiana aquarium welcomed a new baby shark to its facilities earlier this month, but staff are unsure of exactly where it came from. On Jan. 3, a swell shark egg hatched at Shreveport Aquarium ...