The Shedd Aquarium has shared new photos of its baby penguins, which hatched in May. (Shedd Aquarium/Brenna Hernandez)

Like any proud new parent, the Shedd Aquarium is sharing adorable photos of its newest arrivals: four Magellanic penguin chicks, all of which hatched in mid-to-late May.

Magellanic penguins are one of 18 species of the bird. (Shedd Aquarium / Brenna Hernandez)

The four new arrivals are the most Magellanic penguins ever born at the Shedd following the annual breeding season. (Shedd Aquarium / Brenna Hernandez)

Adult Magellanic penguins can swim at speeds reaching 15 mph. (Shedd Aquarium / Brenna Hernandez)

Magellanic penguins are named for the Portuguese explorer Ferdinand Magellan, whose crew spotted the bird while sailing around the tip of South America. (Shedd Aquarium / Brenna Hernandez)

Magellanic penguins have distinctive markings that differentiate them from other species. Note the black bands on their white bellies. (Flickr / dfaulder)

Contact Patty Wetli:@pattywetli| (773) 509-5623 |[email protected]