New Zealand ‘monster penguins’ had Northern Hemisphere doppelgangers, researchers say

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New Zealand 'monster penguins' had Northern Hemisphere doppelgangers, researchers say


Monster penguins that lived in New Zealand 62 million years in the past had doppelgangers in Japan, the USA and Canada, in keeping with a brand new research.

For the research printed Monday within the Journal of Zoological Systematics and Evolutionary Analysis, scientists recognized similarities between the penguins’ fossilized bones and people of a gaggle of a lot youthful Northern Hemisphere birds, referred to as plotopterids.

These similarities counsel plotopterids and historic penguins appeared fairly related and will give scientists perception into how the birds started to make use of their wings to swim as an alternative of fly.

The earliest identified penguins swam in tropical seas that just about submerged the land we at the moment know as New Zealand. Paleontologists found the fossilized bones of those historic waddlers, a few of which had been as giant as 5-feet-tall, at Waipara, North Canterbury.

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The giant penguins, like these Kumimanu, that lived in Aotearoa New Zealand around 60 million years ago bore a striking resemblance to some plotopterids.

The enormous penguins, like these Kumimanu, that lived in Aotearoa New Zealand round 60 million years in the past bore a putting resemblance to some plotopterids.
(Mark Witton)

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Plotopterids developed within the Northern Hemisphere about 37 to 34 million years in the past, researchers say, and so they’ve been discovered at websites in North America and Japan.

When scientists in contrast the fossilized bones of plotopterids with fossils of the enormous penguin species from Canterbury Museum’s assortment, they discovered that each had related lengthy beaks with slit-like nostrils, chest and shoulder bones, and wings.

“What’s outstanding about all that is that plotopterids and historic penguins developed these shared options independently,” mentioned Vanessa De Pietri, a curator at Canterbury Museum, in a assertion. “That is an instance of what we name convergent evolution, when distantly associated organisms develop related morphological traits below related environmental situations.”

Though they shared these bodily traits with historic and trendy penguins, plotopterids are extra carefully associated to gannets and cormorants than they’re to penguins.

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Plotopterids like these Copepteryx grew to enormous sizes.

Plotopterids like these Copepteryx grew to monumental sizes.
(Mark Witton)

“These birds developed in several hemispheres, hundreds of thousands of years aside, however from a distance you’d be hard-pressed

The giant penguins, like these Kumimanu, that lived in Aotearoa New Zealand around 60 million years ago bore a striking resemblance to some plotopterids.

The enormous penguins, like these Kumimanu, that lived in Aotearoa New Zealand round 60 million years in the past bore a putting resemblance to some plotopterids.
(Mark Witton)

to inform them aside,” Paul Scofield, a Canterbury Museum curator, mentioned. “Plotopterids appeared like penguins, they swam like penguins, they most likely ate like penguins — however they weren’t penguins.”



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