Blue Penguins are the smallest penguins in the world. In recent years, their population has been decreasing and scientists believe that warming oceans are causing this shift.

To identify the largest and smallest penguin species, 24/7 Wall St. reviewed Penguins-World, an online resource about the biological characteristics of all penguin species.

The world's smallest species of penguins has been added to the Birch Aquarium in San Diego, Southern California, according to a report in Newsweek.

World’s smallest penguins to make big splash at Birch Aquarium It’s the first time the San Diego aquarium has housed seabirds in its 116-year history.

The world’s smallest penguins can now be seen for the first time in Southern California at Birch Aquarium.

The Oamaru Blue Penguin Colony on New Zealand’s South Island helps protect the smallest penguins on the planet.

This is the world's smallest penguin species; the birds grow to be no bigger than about 15.7 inches (40 centimeters) tall, or about the height of a bowling pin, according to The Australian Museum.

A dead little penguin washed up on a New Zealand beach. (Image credit: Shutterstock) More than 500 of the world's smallest penguins have mysteriously washed up dead on beaches across New Zealand ...

In need of a break from constant streams of Covid-19 and lockdown updates? Well, the world's smallest penguins are here to help! It's the season where the adorable creatures swim to shore and ...

Hundreds of the world's smallest penguins are washing up dead on New Zealand's shores. An expert says it's the third 'mass death' event in 10 years.

An Australian state restored a habitat for the world’s smallest penguins by removing every home from a coastal development.

World’s smallest penguins will make a splash at Birch Aquarium starting next year It will be the first time in the La Jolla aquarium’s century-plus history that it’s housed seabirds.