Not hot- nor cold-blooded, dinosaurs were 'in between'
Were dinosaurs hot-blooded like birds and mammals or cold blooded like reptiles? Well, they were somewhere "in between".
Scientists evaluated the metabolism of numerous dinosaurs using a formula based on their body mass.
"We found that dinosaurs had growth and metabolic rates that were actually not characteristic of warm-blooded or even cold-blooded organisms," said evolutionary biologist Brian Enquist from University of Arizona.
"Instead, they had growth rates and metabolisms intermediate to warm-blooded and cold-blooded organisms of today," he added.
The researchers called creatures with this medium-powered metabolism "mesotherms".
The study assessed 21 species of dinosaurs as well as a range of mammals, birds, bony fish, sharks, lizards, snakes and crocodiles.
"In short, they had physiologies that are not common in today's world," said Enquist.
Modern animals such as this leatherback turtle have a similar "in between" metabolism.
The study was published in the journal Science.
(Posted on 13-06-2014)
Information on States of India:
Andaman Nicobar | Andhra Pradesh | Arunachal Pradesh | Assam | Bihar | Chandigarh | Chhattisgarh | Dadar Nagar Haveli | Daman Diu | Delhi | Goa | Gujarat | Haryana | Himachal Pradesh | Jammu Kashmir | Jharkhand | Karnataka | Kerala | Lakshadweep | Madhya Pradesh | Maharashtra | Manipur | Meghalaya | Mizoram | Nagaland | Orissa | Pondicherry | Punjab | Rajasthan | Sikkim | Tamil Nadu | Tripura | Uttar Pradesh | Uttaranchal | West Bengal
INDIA REGIONAL MAPS:
Andhra Pradesh Travel Map | Bihar Travel Map | Goa Travel Map | Gujarat Travel Map | Haryana Travel Map | Himachal Pradesh Map | Karnataka Travel Map | Kerala Travel Map | Maharashtra Travel Map | Punjab Travel Map | Rajasthan Travel Map | Sikkim Travel Map | Tamil Nadu Travel Map | Uttar Pradesh Travel Map | West Bengal Travel Map |
KERALA TRAVEL MAPS:
TRAVEL MAPS OF INDIA:
INDIA CITY MAPS: