Modern
birds preserve the physical characteristics of baby dinosaurs, according to a
new nature study that found birds are even more intimately related to dinos
than previously thought.
Depending
on the non-avian dinosaur and bird compared, that might be durable to believe.
A toothy, angry rebuilding of tyrannosaurus rex, for example, on first glimpse
looks little like a common backyard blue jay.
When
researchers go beyond the outside to the tissue and skull levels, however, the
similarities become more palpable.
News: 'extinct' animals back from
the edge
Harvard University’s
arkhat abzhanov, correlate professor of organismic and evolutionary biology,
and bhart-anjan bhullar, a ph.d. Student in abzhanov laboratory and the first
author of the study did just that and found proof that the evolution of birds
is the result of a radical change in how dinosaurs urbanized. Rather than take
years to reach sexual adulthood, as many dinosaurs did, birds sped up the clock
(some species take as little as 12 weeks to mature), allowing them to lock into
their baby relic look
"What is interesting about this investigate is the way it
illustrates evolution as a developmental occurrence," abzhanov was quoted
as saying in a press release. "By changing the developmental ecology in
early species, nature has shaped the modern bird a completely new creature and
one that, with approximately 10,000 species, is today the most winning group of
land vertebrates on the planet."
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