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Adelie Penguin vs Gentoo Penguin

A side-by-side comparison of the Adelie Penguin and Gentoo Penguin, covering size, weight, habitat, diet, conservation status, and lifespan.

71 cm vs 90 cmLeast Concern / Least Concern
Adelie penguin on rocky Antarctic shore

Adelie Penguin

Least Concern
Gentoo penguin walking on a beach

Gentoo Penguin

Least Concern

Size Comparison

Adelie Penguin

46-71 cm

3.6-6 kg

Gentoo Penguin

51-90 cm

4.5-8.5 kg

Conservation Status

Adelie Penguin

Least Concern

Gentoo Penguin

Least Concern

Scientific Name

Adelie Penguin

Pygoscelis adeliae

Gentoo Penguin

Pygoscelis papua

Height

Adelie Penguin

46-71 cm

Gentoo Penguin

51-90 cm

Weight

Adelie Penguin

3.6-6 kg

Gentoo Penguin

4.5-8.5 kg

Lifespan

Adelie Penguin

10-20 years

Gentoo Penguin

15-20 years

Population

Adelie Penguin

~7,580,000 pairs

Gentoo Penguin

~774,000 pairs

Diet

Adelie Penguin

Krill, Fish, Squid

Gentoo Penguin

Crustaceans, Fish, Squid

Habitat

Adelie Penguin

Antarctic coastline, Rocky shores

Gentoo Penguin

Sub-Antarctic islands, Antarctic Peninsula

Regions

Adelie Penguin

Antarctica, South Shetland Islands, South Orkney Islands

Gentoo Penguin

Falkland Islands, South Georgia, Kerguelen Islands, Antarctic Peninsula

Genus

Adelie Penguin

Pygoscelis

Gentoo Penguin

Pygoscelis

About Each Species

Adelie Penguin

Small, highly abundant Antarctic penguins recognized by their distinctive white eye rings. Adélies are one of only two penguin species on the Antarctic mainland and serve as key indicator species for ecosystem health.

Learn more about Adelie Penguin

Gentoo Penguin

The third-largest penguin and the fastest underwater swimmer of all penguins at 36 km/h, Gentoos are easily identified by their bright orange-red bill and white "bonnet" across the top of the head.

Learn more about Gentoo Penguin

Frequently Asked Questions

Which is bigger, Adelie Penguin or Gentoo Penguin?

The Gentoo Penguin is larger, standing up to 90cm tall compared to the Adelie Penguin's 71cm.

Which is more endangered, Adelie Penguin or Gentoo Penguin?

The Adelie Penguin is classified as "Least Concern" while the Gentoo Penguin is "Least Concern".

Do Adelie Penguins and Gentoo Penguins live in the same area?

Adelie Penguins are found in Antarctica, South Shetland Islands, South Orkney Islands. Gentoo Penguins are found in Falkland Islands, South Georgia, Kerguelen Islands, Antarctic Peninsula.

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