Caltech Researchers Measure Body Temperatures of Dinosaurs for the First Time - John Eiler and Rob Eagle. (6/23/11)

Video

Caltech-led researchers measure body temperature of dinosaurs for the first time. Interviews with the Caltech researchers, John Eiler and Rob Eagle.

[Credit: Caltech]

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Audio

Images

Dinosaur tooth

Caltech geochemists Rob Eagle (left) and John Eiler display a dinosaur tooth, which was used to determine the body temperature of the extinct creatures.

[Photo Credit: Caltech / Lance Hayashida]

Dinosaur tooth

Caltech geochemists Rob Eagle (left) and John Eiler display a dinosaur tooth, which was used to determine the body temperature of the extinct creatures.

[Photo Credit: Caltech / Lance Hayashida]

Camarasaurus tooth

Camarasaurus tooth from the Jurassic Morrison Formation of North America that was analyzed in the study by Eagle et al.

[Photo Credit: Thomas Tütken (Bonn University)]

Brachiosaurus tooth

Brachiosaurus tooth from the Jurassic Tendaguru Beds of Tanzania that was analyzed in the study by Eagle et al.

[Photo Credit: Thomas Tütken (Bonn University)]

Dinosaur tooth

A dinosaur tooth is drilled in preparation for analyzing the isotopic concentrations in the tooth, which reveals the body temperature of the extinct creatures.

[Photo Credit: Caltech / Lance Hayashida]

Dinosaur tooth

A dinosaur tooth is drilled in preparation for analyzing the isotopic concentrations in the tooth, which reveals the body temperature of the extinct creatures.

[Photo Credit: Caltech / Lance Hayashida]

Dinosaur tooth

By analyzing the isotopic composition of dinosaur teeth, Caltech-led researchers have determined dinosaur body temperatures for the first time.

[Photo Credit: Caltech / Lance Hayashida]

Caltech geochemists John Eiler and Rob Eagle

Caltech geochemists John Eiler (foreground) and Rob Eagle.

[Photo Credit: Caltech / Bill Youngblood]

Caltech geochemists John Eiler and Rob Eagle

Caltech geochemists Rob Eagle (foreground) and John Eiler display a dinosaur tooth sample, which was used to determine the body temperature of the extinct creature.

[Photo Credit: Caltech / Bill Youngblood]

Dinosaur tooth

Caltech geochemists Rob Eagle (left) and John Eiler adjust equipment used to analyze the isotopic concentrations in dinosaur teeth and reveal the body temperature of the extinct creatures.

[Photo Credit: Caltech / Lance Hayashida]

Jurassic sauropod

Jurassic sauropod.

[Illustrated by Russell Hawley, Tate Geological Museum]