CHICAGO -- Charlie Jacobsma slapped the surface of a pool enclosure at Chicago’s Shedd Aquarium and scanned the water for ...

When most people think of parasites affecting their pets, they imagine heartworms in dogs or roundworms in cats. However, ...

If you keep pet fish, at some point, you may have encountered an escapee lying lifeless outside the water. Fish jumping out ...

On Thursday, the Aquarium of the Pacific released its first Marine Species Report Card, detailing the population trends of 30 ...

While asexual reproduction is common among many plants and invertebrates ... Yoko, a baby swell shark, swims in a tank at Shreveport Aquarium in Shreveport, Louisiana. The shark hatched from an egg on ...

The egg was discovered by aquarium staff in a female shark tank about eight months ago ... While asexual reproduction is common among many plants and invertebrates, parthenogenesis, in which ...

A swell shark hatched at Shreveport Aquarium in Louisiana after an egg was found in an all-female tank. Screengrab from a video by the Shreveport Aquarium A small shark swimming around a Louisiana ...

Greg Barrick from Shreveport aquarium says further DNA testing is being conducted to determine how a baby swell shark hatched in an all-female aquarium tank.

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.

The Shreveport Aquarium announced last week that Yoko the swell shark — named for "Onyoko," the Chumash word for shark — hatched on Jan. 3, about eight months after her egg was first discovered in a ...