The Adélie penguin is one of three species in the genus Pygoscelis. source
The Adélie penguin is one of three species in the genus Pygoscelis.
Mitochondrial and nuclear DNA evidence suggests the genus of Adélie penguins split from other penguins around 38 million years ago. source
Mitochondrial and nuclear DNA evidence suggests the genus of Adélie penguins split from other penguins around 38 million years ago.
About 2 million years after the ancestors of the genus of Adélie penguins Aptenodytes. source
About 2 million years after the ancestors of the genus of Adélie penguins Aptenodytes.
In turn, the Adélie penguins split off from the other members of the genus around 19 million years ago. source
In turn, the Adélie penguins split off from the other members of the genus around 19 million years ago.
Based on a 2014 analysis of fresh guano-discolored coastal areas, 3.79 million breeding pairs of Adélie penguins are in 251 breeding colonies . source
Based on a 2014 analysis of fresh guano-discolored coastal areas, 3.79 million breeding pairs of Adélie penguins are in 251 breeding colonies .
The colonies of Adélie penguinsare distributed around the coastline of the Antarctic land and ocean. source
The colonies of Adélie penguinsare distributed around the coastline of the Antarctic land and ocean.
Colonies of Adélie penguins have declined on the Antarctic Peninsula, but those declines have been more than offset by increases in East Antarctica. source
Colonies of Adélie penguins have declined on the Antarctic Peninsula, but those declines have been more than offset by increases in East Antarctica.
Adélie penguins breed from October to February on shores around the Antarctic continent. source
Adélie penguins breed from October to February on shores around the Antarctic continent.
Adélies penguins build rough nests of stones. source
Adélies penguins build rough nests of stones.
Two eggs Adélies penguins are laid, these are incubated for 32 to 34 days by the parents taking turns (shifts typically last for 12 days). source
Two eggs Adélies penguins are laid, these are incubated for 32 to 34 days by the parents taking turns (shifts typically last for 12 days).
Adélies penguins are mid-sized, being 46 to 71 cm (18 to 28 in) in height and 3.6 to 6 kg (7.9 to 13.2 lb) in weight. source
Adélies penguins are mid-sized, being 46 to 71 cm (18 to 28 in) in height and 3.6 to 6 kg (7.9 to 13.2 lb) in weight.
The tail of Adélie penguins is a little longer than other penguins' tails. source
The tail of Adélie penguins is a little longer than other penguins' tails.
Adélie penguins usually swim at around 5 miles per hour (8.0 km/h). source
Adélie penguins usually swim at around 5 miles per hour (8.0 km/h).
Adélie penguins are preyed on by leopard seals, skuas, and occasionally, killer whales. source
Adélie penguins are preyed on by leopard seals, skuas, and occasionally, killer whales.
Regularly this attitude led to the demise of an Adélie penguin, "Then the final fatal steps forward are taken and they come within reach. source
Regularly this attitude led to the demise of an Adélie penguin, "Then the final fatal steps forward are taken and they come within reach.
