BlogArena

General blog about anything and everything of everyday's life.

19. Oct 2019

May 4, 2013
by Guest Post
0 comments

What Happened to Dinosaurs’ Predecessors After Earth’s Largest Extinction 252 Million Years Ago?

Fossil-hunting expeditions to Tanzania, Zambia and Antarctica provide new insights Predecessors to dinosaurs missed the race to fill habitats emptied when nine out of 10 species disappeared during Earth’s largest mass extinction 252 million years ago. Or did they? That … Continue reading

February 9, 2013
by Guest Post
0 comments

Placental Mammal Diversity Blossomed After Age of Dinosaurs

Scientists build new ‘tree of life’ for placentals, visualize common ancestor Scientists have reconstructed the common ancestor of placental mammals–an extremely diverse group including animals ranging from rodents to whales to humans–using the world’s largest dataset of both genetic and … Continue reading

February 24, 2012
by Guest Post
0 comments

Evolution of Earliest Horses Driven by Climate Change

*The hotter it gets, the smaller the animal?* When Sifrhippus sandae, the earliest known horse, first appeared in the forests of North America more than 50 million years ago, it would not have been mistaken for a Clydesdale. It weighed … Continue reading

February 8, 2012
by Guest Post
0 comments

Global Extinction: Gradual Doom as Bad as Abrupt

*In “The Great Dying” 250 million years ago, the end came slowly* The deadliest mass extinction of all took a long time to kill 90 percent of Earth’s marine life–and it killed in stages–according to a newly published report. It … Continue reading