"In the last eight years there have been 535 mountain lions reported killed on California highways — a steady toll of one to two each week that scientists suggest may exceed the reproductive rate of increasingly isolated and inbred puma clans."

"The largest ever outbreak of bird flu is spilling over into mammals, including otters and foxes in the UK."

"The South is experiencing its earliest spring in 40 years of records, while spring is days to weeks early across the East Coast and Pacific Northwest".

"The Alpha and Gamma variants of the coronavirus continued to circulate and evolve in white-tailed deer, even after they stopped spreading widely among people, a new study suggests."

"The virus now known as SARS-CoV-2 — which causes the disease COVID-19 — is still spreading. But for those who study infectious diseases, talking about possible next pandemics is a necessity."

"A new museum and conservation center dedicated to Mexico's critically endangered axolotl salamander is highlighting the amphibian's remarkable story that has captured the attention of scientists and the public alike."

"The Colorado River begins as melting snow, trickling from forested peaks and coursing in streams that gather in the meadows and valleys of the Rocky Mountains. Like arteries, its major tributaries take shape across Colorado, Wyoming, Utah and New Mexico, coming together in a great river like no other — a river that travels more than 1,400 miles and has defined the rise of the American Southwest over the last century."

"The United States is facing a shortage of the native seeds it uses to restore natural habitats damaged by wildfire and other weather events made worse by climate change, according to a report released on Thursday by the National Academies of Sciences, Engineering, and Medicine (NASEM)."