News tagged with north

Where have all the swallows gone?

Extinction: the permanent loss of a species. It is deeply troubling—and scientists and birdwatchers are ringing the alarm about a bird species that only a few decades ago was widespread and very common.

Jul 23, 2014 4.9 / 5 (12) 4

Researchers try to save huge US salamander (Update)

With a long, slimy body and beady eyes, North America's largest salamander wouldn't top any cutest animal lists. The hellbender's alien appearance and mysterious ways have earned the big amphibian a bad reputation and unflattering ...

Jul 10, 2014 not rated yet 0

The last ice age

A team of scientists has discovered that a giant 'burp' of carbon dioxide (CO2) from the North Pacific Ocean helped trigger the end of last ice age, around 17,000 years ago.

Jul 03, 2014 4.1 / 5 (22) 33