Chinstrap eggs are more rounded than other penguins’ eggs. They measure 7cm long and 5.5cm wide, but at maximum weigh in a bit lighter at around 120g – that’s about twice the size of a chicken egg.

Scientists discovered the astonishing micro-napping habit while trying to understand how male chinstrap penguins appeared to ...

Yet a study published Thursday in Science shows that nesting chinstrap penguins sleep ... off Antarctica, where penguins flock together to incubate eggs and protect their young from predators.

Researchers have unveiled that chinstrap penguins slumber ... During nesting season, single-parent penguins must constantly guard their eggs from predators like skuas while their partners forage ...

In 2019, two other male penguins there — Skipper and Ping — also adopted an abandoned egg, but it failed to hatch. They were preceded by Roy and Silo, two male chinstrap penguins at a New York ...