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.

In one of the longest known cases, scientists discovered in 2015 that a female brownbanded bamboo shark at a San Francisco aquarium had stored sperm for at least 45 months — it gave birth nearly ...

In one of the longest known cases, scientists discovered in 2015 that a female brownbanded bamboo shark at a San Francisco aquarium had stored sperm for at least 45 months — it gave birth nearly ...

In one of the longest known cases, scientists discovered in 2015 that a female brownbanded bamboo shark at a San Francisco aquarium had stored sperm for at least 45 months — it gave birth nearly four ...

A Louisiana aquarium has a new star — and a mystery — on its hands after a baby shark was born in a habitat without any males. The Shreveport Aquarium announced last week that Yoko the swell ...