The mass extinction at the end of the Permian Period 252 million years ago — one of the great turnovers of life on Earth — appears to have played out differently and at different times on land and in the sea, according to newly redated fossils beds from South Africa and Australia.
A new study finds there are nearly 3 billion fewer wild birds flying in North American skies than in 1970.
A 21st century nuisance for parents may have proved deadly to early man.
Analysis of perfectly intact Mirarce eatoni reveals that it was just as well adapted to flight as modern birds, prompting questions about why it was wiped out.
Gibbon likely belonged to Lady Xia, grandmother of China’s first emperor, but its species appears to have been driven to extinction by deforestation.
Scientists are warning that cows may become Earth’s largest remaining mammal if extinction continues at its current rate.
NASA and the NOAA have jointly confirmed that 2016 was the hottest year in recorded history, ever since mankind began recordkeeping in 1880. The record was previously held by 2015, and prior to that, by 2014. At the end of October, Arctic ice was at its second-lowest point since we started keeping track.