Lake Ohrid, at 2 million years old, may be the most biodiverse lake of its size in the world, teeming with fish, snails, crustaceans, and more.

A new machine-learning system developed at the University of Alaska Fairbanks can automatically produce detailed maps from satellite data to show locations of likely beetle-killed spruce trees in Alaska, even in forests of low and moderate infestation where identification is otherwise difficult.

Soaring birds — like osprey, eagles, falcons, even vultures — can stay aloft in the air seemingly forever, rarely flapping their wings. 

In a study with potential implications for the oceans and human health, scientists reported elevated mercury levels in dolphins in the U.S. Southeast, with the greatest levels found in dolphins in Florida’s St. Joseph and Choctawhatchee Bays.  

This year has already seen massive heatwaves around the globe, with cities in Mexico, India, Pakistan and Oman hitting temperatures near or past 50 degrees Celsius (122 degrees Fahrenheit).  

The increase in the frequency and intensity of marine heatwaves in recent decades is one of the effects of global climate change. 

We may go to the woods seeking peace and quiet, but are we taking our noise with us? 

Magnesium compounds are a common ingredient of many remedies designed to help people wind down and escape the stresses of modern life.

Numbers of puffins at one of the UK’s largest colonies have increased by around a third since 2017.

Urgent changes are needed to solve the increasing problem of lost and wasted food, according to UNSW experts.