Among the animals now described Prof. Boule considers he can recognise every gradation between the Pliocene bears and the modern brown bear; he also sees some approach to a Pliocene species in the ...

Kiguktak, a paleontology field technician and bear monitor who also happens to be the former mayor of Grise Fiord, is part of a research group studying these fossil-bearing sites, of which only a few ...

But a new study indicates that pandas are a part of what was once a flourishing collection of even larger bears. ... as 8 million years ago until they died out in the middle of the Pliocene, ...

And now, she notes, atmospheric carbon dioxide levels are once again what they were in the Pliocene: “It’s a snapshot of the world we’re likely to go toward if we don’t curb emissions.” ...

The last time CO2 levels were as high as today was 3 million years ago during a much warmer time on Earth called the Pliocene. It's a provoking thought for Earth Day.