This is what was determined to have happened when a female zebra shark at Chicago's Shedd Aquarium hatched an egg without any male contact in 2022. Delayed fertilization has also been documented ...

A visit to Shedd Aquarium will lead you through a cornucopia of habitats, where you'll find additional animals like penguins, piranhas, sharks and beluga whales. Or, for an additional fee ...

Tucked in a small habitat in Shedd Aquarium’s Polar Play Zone, a group of tiny orange-brown sea stars tell a much bigger ...