“Distinguishing the first true birds from their feathered dinosaur relations has become increasingly difficult. If we define birds as warm-blooded, feathered, bipedal animals that lay eggs, then many coelurosaurs are birds, so we have to take another approach.” — Brian Switek Copy Share Image
“The places paleontologists looked for fossils and how those fossils have been interpreted have been influenced by politics and culture, reminding us that while… — Brian Switek Copy Share Image
“Distinguishing the first true birds from their feathered dinosaur relations has become increasingly difficult. If we define birds as warm-blooded, feathered, bipedal animals that… — Brian Switek Copy Share Image
“the difficulties of making temperature experiments [on fully grown alligators] would be great and can be best left to the imagination.”)” — Brian Switek Copy Share Image
“I nurtured my dinomania with documentaries, delighted in the dino-themed B movies I brought home from the video store, and tore up my grandparents'… — Brian Switek Copy Share Image
“In order to approximate dinosaurian physiology, the trio of scientists carried out the unenviable task of sticking thermometers in the cloacae of American alligators.” — Brian Switek Copy Share Image
“This area produces a protein given the whimsical name Sonic Hedgehog,” — Brian Switek Copy Share Image
“As new discoveries continued to accumulate it became apparent that almost every group of coelurosaurs had feathered representatives, from the weird secondarily herbivorous forms… — Brian Switek Copy Share Image
![“the difficulties of making temperature experiments [on fully grown alligators] would be great and can be best left to the imagination.”)” quote by Brian Switek](https://sms4smile.com/quotes/img-quotes/3f3/brian-switek-49640_quote_the-difficulties-of-making-temperature-e_1161200.jpg)
