Dinosaur species attracted mates similar to a peacock

Nov 09, 2011 by Deborah Braconnier report
A Peafowl flaring his feathers. Image: Wikipedia.

(PhysOrg.com) -- A new study presented at the Society for Vertebrate Paleontology shows that the Oviraptor dinosaur had a tail structure that allowed it to shake its tail feathers, possibly to attract potential mates.

Oviraptors roamed the Earth during the . Their name, which is Latin for “egg thief,” was given to them because the first remains found of this dinosaur was discovered near a pile of eggs. However, as more were discovered it was determined that the eggs in fact probably belonged to the dinosaur. Researchers are still not sure what their exact diet would have consisted of.

Oviraptors are a member of the theropod group of dinosaurs. Their tail structure is similar to that of modern-day birds. Doctoral student Scott Persons from the University of Alberta was studying this group of dinosaurs when he discovered that the Oviraptors had a different and odd arrangement of bones in the tail.

Size comparison between the dinosaur Oviraptor and a human. Image: Wikipedia.

The tail structure of the Oviraptor is shorter than most other . He discovered that this short size was not because of missing bones but because each individual vertebra are compacted together. This dense arrangement of the bones makes the tails extremely flexible.

Fossil impressions of these birds show that they had a large fan of feathers that were attached to the end of their tails. These feathers were attached by fused vertebrae at the end of the tail. Combined together, this flexible fan of may have been used as a way to attract potential mates, similar to modern-day peacocks.

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xznofile
not rated yet Nov 09, 2011
most lizards and some birds also use their tail for combat. it's possible the tail feathers could have been used the way pigeons and doves use their wingtips to defend their nests. or like porcupines and tarantulas shed body hairs. the wrist feathers shown also seem to be for something utilitarian aside from flight, but if it were for show, as a secondary sex trait, it's possible flight could have become possible just through showing off ("Hey baby, watch this...")