How many penguin species breed on or near the Antarctic continent?

What is the largest penguin species?

For what reason are emperor penguins unique among birds?

What is the primary food source for most wildlife in Antarctica?

Which of the following is the largest native land animal in Antarctica?

How deep are emperor penguins able to dive?

Which seal species is considered the most aggressive predator in Antarctic waters after the killer whale?

The crabeater seal has a misleading name. What is its primary food source?

Which whale found in Antarctic waters is the largest animal ever to have lived on Earth?

Antarctic krill form the base of the Antarctic food chain. Approximately how long can they live?