The difference in sizes of eggs within a clutch of erect-crested penguins is the largest for any bird. (IMAGE)

PLOS

The difference in sizes of eggs within a clutch of erect-crested penguins is the largest for any bird.

Caption

The difference in sizes of eggs within a clutch of erect-crested penguins is the largest for any bird, with the first-laid egg being far smaller than the second-laid egg.

Credit

Lloyd Davis Photography (www.lloyddavis.com), CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

Usage Restrictions

Credit must be given to the creator.

License

CC BY

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