She's more than 70 years old, is an internet superstar and she just laid an egg

Wisdom the Laysan albatross is an internet star, and for good reason – she’s the world’s oldest known bird, and at more than 70 years old, she is still laying eggs. 

She was first ringed in 1956, and it is calculated that she is at least 74 years old. 

Every year, she returns to an atoll in the Hawaiian Archipelago, and she has laid an egg this year with a new male partner.

“We are optimistic that the egg will hatch,” says Jonathan Plissner, supervisory wildlife biologist at the refuge.

• Albatross guide: species facts, diet, threats they face - and their massive wingspan

Main image: Wisdom incubating her egg in December 2014/Daniel Clarkusfws

• More than 100 of these secretive birds were tagged and followed around the planet. Here's why
• Orcas are now hunting whale sharks – and they're doing it in an astonishing way
• A long-lost sound has returned to the great mountains of Yosemite National Park