March 18, 2009

T-Rex of the ocean

Posted in Animals, Biology, Dinosaurs, Evolution, Nature, Oceanography, Paleontology, Science tagged at 1:52 pm by deadlikeme

predatorx2

“Predator X” is a 50ft sea creature that hunted the seas 150 million years ago.

An international team of paleontologists have found the partial skull of this new species of pliosaurs on the remote Arctic archipelago of Svalbard. According to the researchers it had a bite force of 33,000 pounds. This is more than 10x that of any animal living today (and at least 2x that of a T-Rex).

A 2-hour documentary on the expedition will be shown on the History Channel on March 29.

New York Times

Museum of Natural History Oslo

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April 13, 2007

Mmm, Tyrannosaurus Rex tastes like chicken

Posted in Biology, Dinosaurs, Education, Evolution, Paleontology, Science at 9:59 am by deadlikeme

trex.jpg 

Two years ago a team of scientists announced that they have found soft tissue remnants inside the fossilized femur of a 68 million year old Tyrannosaurus Rex. The skeleton had been found in the Hell Creek Formation in Montana. Now a new study has been puplished in Science.

In Protein Sequences from Mastodon and Tyrannosaurus Rex Revealed by Mass Spectrometry, the scientists used mass spectrometry to obtain protein sequences from bones of a 160,000- to 600,000-year-old extinct mastodon (Mammut americanum) and the 68 million year old T. rex.

Looks like T. rex’s collagen (most common protein in animals) shares a 58% similarity with that of a chicken.

Remember how the scientists in Jurassic Park used frog DNA to complement the dinosaur DNA? Well, the examined T. rex’s collagen also shares a 51% similarity with that of frogs.

Science Article