Dig to uncover Ice Age fossils

Aug 2, 2014

Dig to uncover Ice Age fossils

by Laura Zuckerman

Scientists will soon begin excavation of an ancient Wyoming sinkhole containing a rare bounty of fossil remains of prehistoric animals, such as mammoths and dire wolves, preserved in unusually good condition, researchers said on July 24. The two-week dig, set to begin under the ...

World's oldest sperm unearthed in Australia

May 24, 2014

World's oldest sperm unearthed in Australia

The world’s oldest and best-preserved sperm, dating back 17 million years, has been unearthed in Australia, scientists said on May 14. The sperm from an ancient species of tiny shrimp was discovered at the Riversleigh World Heritage Fossil Site, an area in the far ...

Pygmy tyrannosaur prowled the ancient Arctic

Mar 22, 2014

Pygmy tyrannosaur prowled the ancient Arctic

by Kerry Sheridan

A pint-sized tyrannosaur braved the frigid Arctic and feasted on fellow dinosaurs 70 million years ago, according to a recent report on a new species identified from fossilized skull bones in Alaska. Scientists have crowned the fierce creature the “polar bear lizard,” or Nanuqsaurus ...

Dec 7, 2013

Old reptiles share toilet

Some large, grass-eating mammals, such as elephants and rhinos, gather together when they defecate, but new evidence, turned up in the journal Nature Scientific Reports, suggests the communal latrine has a much older history and one that predates the mammals. A team led by ...

May 30, 2013

Study casts doubt on theory of caring dino dads

Male dinosaurs may not have had a caring side after all. Five years ago, a study of theropod dinosaurs concluded that it was male dinosaurs that incubated the eggs of their offspring. Now a new analysis of the same data is challenging that finding. ...

Chameleons born in Africa, rafted to Madagascar

Mar 29, 2013

Chameleons born in Africa, rafted to Madagascar

Chameleons took to the waves to migrate from Africa to Madagascar about 65 million years ago, says a study that seeks to resolve a roiling biological debate. Chameleons are famous for the extraordinary ability of some species to change color, and for a lightning-fast ...