SCIENCE IN THE NEWS DAILY
Tooth Chemistry Reveals Sauropod Sojourns
from Nature News
A collection of teeth from
dinosaurs in the western United
States has produced the first solid
evidence that these ancient animals
undertook seasonal migrations.
It is often hard to determine
what dinosaurs looked like from
fossils--and trying to infer
behaviour adds a whole different
level of difficulty. Nevertheless,
it has often been assumed that
dinosaurs did migrate.
Henry Fricke, a geochemist at
Colorado College in Colorado
Springs, and his colleagues now
seem to have hard evidence that
sauropod dinosaurs moved hundreds
of kilometres every year. They
publish their findings today in
Nature.
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