Gentoo penguins in Antarctica in 2017. Researchers found that guano from Adélie penguins releases a large amount of ammonia ...

Earnings at several major companies were up year over year. Shin-Etsu Chemical saw a turnaround from 2023, when profits fell ...

In the first 48 h after K.J. Muldoon’s birth last year, doctors noticed signs of lethargy and respiratory distress. A blood test revealed off-the-charts ammonia levels—they exceeded 1,000 ...