DNA

Preserved Paleo Protein Provides Perspective on Dino Family Tree, and Maybe Life in Space. Wait. What?

You are a paleontologist on expedition hunting dinosaur fossils.  For all your efforts, you've unearthed just a few bone fragments. Back at the lab, you and your team determine that, based on their shape and size, you're looking at a colossal waste of time and resources. But a new tool is emerging which allows us to use dinosaur DNA to better understand prehistoric evolutionary trees. It may also help to find life on Mars, or treat human diseases. 

 

Invasion Of The Molecular Math Robots

With great complexity, we manufacture things like jet airplanes, interplanetary probes, medical tools, and microprocessors. We build with a top-down approach, starting with a big picture concept which we then design and assemble in pieces.  ​

Duke University professor of computer sciences, Dr. John Reif, notes that nature works from the bottom up to assemble complex structures in three dimensions. He and his lab are working on that.

How Snakes Lost Their Legs

Scientists in Florida say they've pinpointed a genetic process that caused snakes to lose their legs and have found that embryonic pythons still form "cryptic leg skeletons," millions of years later.