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. Shark pup Yoko ...

shape and number of chromosomes — and compare it to that of the two female swell sharks that could have laid the egg. "We do not know which one laid it, but they both came to our facility at the ...

A Louisiana aquarium welcomed a new baby shark to its facilities earlier this ... And scientists are still unsure of exactly why it happens. One hypothesis is parthenogenesis occurs when females ...

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 ...

When an egg appeared one day in a shark tank at a Louisiana aquarium, staff were puzzled. The tank only has two resident sharks — and they're both female. What's more, neither of them have had ...

shape and number of chromosomes — and compare it to that of the two female swell sharks that could have laid the egg. "We do not know which one laid it, but they both came to our facility at the ...