Earth

Blue whales off California’s coast sing at night—until it’s time to start migrating, and they switch to daytime song.

The disappearance of their predators in a disturbed ecosystem has turned Atlantic forest sloths from night creatures to day adventurers.

If greenhouse gas emissions do not decline, melt rates could quadruple and further add to sea level rise

One third of volcanoes may have molten reserves kilometers away

Researchers seeking evidence for cancer in dinosaurs found it in a collection of bones at a paleontology museum in Alberta.

Here are some brief reports about science and technology from all over, including one from Israel about what DNA reveals about the Dead Sea Scrolls’ parchment. 

After years of warning, sea ice coverage and other indicators are beginning to push outside the bounds of the former “normal” climate

A U.N. report reveals that countries worldwide have failed to meet key conservation targets set for 2020

Chemical analyses of ancient sediments allowed scientists to put together one of the most comprehensive climate histories of the planet

The finding of a baby dinosaur fossil in the Arctic implies that some dinos nested in the region, which was milder than today but not toasty.

A study estimates that 200 million trees in the tropics are mowed down by lightning annually.

Here are some brief reports about science and technology from all over, including one from Antarctica about how there’s something funny about penguin poop.