How Dinosaurs Got So Big

How Dinosaurs Got So Big

Sauropods were the longest, tallest, and heaviest animals to ever walk the Earth. What adaptations did they have to get so large? And which dinosaurs were the largest in other groups?

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Dinosaur of the day Uberabatitan, A giant titanosaur that may have had the largest teeth of any known sauropod.

In dinosaur news this week:

  • Sauropods grew to be the largest land animals of all time with many special adaptations that helped them reach "super giant" sizes
  • Bruhathkayosaurus may have been the heaviest land animal of all time with weight estimates from 80–190 tonnes
  • Sauroposeidon may be the tallest sauropod (and land animal) of all time—with Giraffatitan proportions bringing it to about 17m (56ft) tall
  • Sauropod babies were already built to grow large
  • It's not just sauropods that had special adaptations to grow so large—Theropods had them too
  • Early sauropod ancestors evolved very rapid growth before they evolved gigantic sizes
  • A new study found 36 unique times that sauropods evolved gigantism
  • A hadrosaur long thought to be an island dwarf turned out to just be young and was still growing


You can dig up real dinosaur bones this summer with Colorado Northwestern Community College! Join them for a two week immersive field paleontology experience digging up dinosaur bones from the Jurassic period in Northwest Colorado. There are two scheduled digs: July 6–July 20 and July 22–August 5. There are also two concurrent immersive lab techniques programs available. Get all the details and register online at cncc.edu/dinodig

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Giganotosaurus carolinii - Episode 23

Giganotosaurus carolinii - Episode 23

Review of two places that showcases animatronic dinosaurs: Field Station Dinosaurs in Secaucus, NJ, and BBC's arena spectacular, Walking With Dinosaurs. Also, dinosaur of the day Giganotosaurus carolinii, a Carcharodontosaurid (theropod) that may have been bigger than T. rex.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

4 Maj 201516min

Changyuraptor yangi - Episode 22

Changyuraptor yangi - Episode 22

A review of the Black Hills Institute in South Dakota, home to Stan the T. rex and where Sue the T. rex was found. Also, dinosaur of the day Changyuraptor yangi, a large Microraptor with a 21 foot wingspan, described in 2014.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

27 Apr 201522min

Ultrasaurus/Ultrasauros - Episode 21

Ultrasaurus/Ultrasauros - Episode 21

Interview with paleo-artist Josh Cotton, who works at the Brigham Young University Museum. Also dinosaur news, including dinosaur eggs found in China and a nearly complete Kronosaurus jaw found in Australia. And, dinosaur of the day Ultrasaurus/Ultrasauros, the Korean/American sauropod described using potentially dubious evidence.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

21 Apr 201556min

Dysalotosaurus - Episode 20

Dysalotosaurus - Episode 20

Dinosaur news, including a 5-year-old that discovered a Nodosaur, a teenage Daspletosaurus that was regularly attacked by its own kind, a new dinosaur exhibit in a mall, and more. Also, dinosaur of the day Dysalotosaurus lettowvorbecki, a dryosaurid iguanodontian named after a German WWI hero.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

18 Apr 201517min

Qianzhousaurus - Episode 19

Qianzhousaurus - Episode 19

Dinosaur news, including a new paper that re-establishes Brontosaurus as a real dinosaur, the discovery of a pair of Romeo and Juliet oviraptors, a new expedition to sample the Chicxulub crater that killed the non-avian dinosaurs, and more. Also, dinosaur of the day Qianzhousaurus sinensis, a tyrannosaur with an elongated snout nicknamed "Pinocchio Rex."Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

9 Apr 201512min

Dilophosaurus - Episode 18

Dilophosaurus - Episode 18

Dinosaur news, including a supertide in Northern France that reveals dinosaur tracks every 18 years, a salamander that snacked on dinosaurs, and the discovery of a new titanosaur in Siberia. Also, dinosaur of the day Dilophosaurus, a medium-sized theropod with two crests on the top of its head best known for its inaccurate portrayal in Jurassic Park.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

1 Apr 201515min

Anzu Wyliei - Episode 17

Anzu Wyliei - Episode 17

Dinosaur news, including dinosaur balloon sculptures in Singapore, a $100,000 Lego stop-motion Jurassic Park movie, and confirmation of the sequel to Jurassic World. Also, dinosaur of the day Anzu Wyliei, a theropod from the Hell Creek Formation in Montana nicknamed "the chicken from hell" partly because of its strange appearance.Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

22 Mars 201518min

Torvosaurus Gurneyi - Episode 16

Torvosaurus Gurneyi - Episode 16

Dinosaur news, including playing as a dinosaur in the Jurassic World lego game, a 3D dinosaur jugsaw puzzle on Kickstarter, and new animatronic dinosaurs in zoos and museums. Also, dinosaur of the day Torvosaurus Gurneyi, a large Jurassic carnivore in Portugal that has changed the way paleontologists see dinosaurs in Europe. Visit http://www.IknowDino.com for more information including a link to dinosaur sites near you.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

18 Mars 201512min

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