When corn prices peaked, Hofreiter sold close to $11 million worth of shiny blue tractors in a single year. He says he doesn't expect to crack $3 million in 2015.

The mastodon, an extinct relative of modern elephants, has become the latest prehistoric animal to have its DNA sequenced. Using a fossilized tooth, Michael Hofreiter of the Max Planck Institute ...

Using ancient DNA extracted from the excavated mammoth bone, the international team of researchers were able to look at the variations in copies of the Mc1r gene. Dr Michael Hofreiter, an author on ...