The Djao'Mor'Terra Collective (fayanora) wrote in whatwasthatone,
The Djao'Mor'Terra Collective
fayanora
whatwasthatone

Penguin blood fact?

I remember watching something on TV, some science show about penguins, and they said something about penguin blood being more efficient at holding oxygen than human blood. I could've sworn they said penguins had something in their blood other than hemoglobin, something more efficient. But I may be misremembering, especially since Wikipedia says all vertebrates use hemoglobin. Does anyone know what it is about penguin blood that allows them to be underwater for 2 hours?
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