S.F. aquarium has first angel shark born in captivity 

Aquarium of the Bay at San Francisco's Pier 39 have announced the birth of the only known angel shark pup to be born in captivity.

The angel shark, scientifically known as Squantina californica, grow to about 5 feet in length and feed on fish, crustaceans and mollusks.

The species is colored to blend in with the bottom of the Bay, where they wait for prey.

The new pup weighs 125 grams and is 23.5 centimeters in length and will not be displayed for a few weeks, spokeswoman Michele Bernhardt said.

"Since very little data is available on these sharks, Aquarium of the Bay is focusing its field projects and collaborative research on gaining a better understanding of their life cycles and distribution patterns. We have recently embarked on a shark tagging program that will help us better understand how sharks fit into the Bay's ecosystem, and what actions need to

be taken to ensure they thrive," said John Frawley, executive director of Aquarium of the Bay.

Angel sharks give live birth to litters of up to 13, according to the aquarium, which currently houses two adult angel sharks.

— Bay City News

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