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Asuntos sobre ornitología, naturaleza en Euskal Herria y conservación, procedentes de terceros. Recopilados y gestionados por Itsas Enara Ornitologia Elkartea
2014/08/07
Giant penguin fossil shows bird was taller than most humans
Analysis of 37m-year-old fossil unearthed in Antarctica shows species would have dwarfed today’s biggest living penguins
Palaeeudyptes klekowskii would have dwarfed today’s biggest living penguin, the emperor penguin. Photograph: Tui De Roy/Corbis
A penguin species that lived millions of years ago would have
dwarfed today’s biggest living penguins and stood as tall as most
humans, according to analysis of fossils by a team of researchers from
the La Plata Museum in Argentina. Palaeeudyptes klekowskii has already been dubbed the “colossus penguin”,
and is the most complete fossil ever uncovered from the Antarctic. The
unearthed bones are 37m years old and include the longest recorded fused
ankle-foot bone as well as parts of a wing bone.
From
those bones, researchers estimated the species would have stood 2m tall
from toe to beak tip, and weighed as much as 115kg. Standing normally,
beak down, the penguin would have be around 1.6m tall, the team reported in the journal Geobios.
By comparison, the tallest and heaviest living species, the emperor penguin (Aptenodytes forsteri), stands 1.1m high and weighs just under 50kg.
Being
of a larger build has its advantages, as bigger penguins could dive
underwater to hunt fish for significantly longer periods of time
compared to smaller species. A penguin the size of Palaeeudyptes klekowskii could stay underwater for up to 40 minutes. How the giant penguin would have measured against humans
The bones were found at the La Meseta formation, Seymour
Island, which is part of the Antarctic peninsula with a wide range and
abundance of penguin bones. In prehistoric times, the region was warmer
with 10 to 14 different penguin species living together. P klekowskii is not the only giant prehistoric penguin to be discovered – in 2007 of a penguin species known as Icadyptes salasi, was found in Peru, living 36m years ago. It had a slightly smaller height of 1.5m.
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