Two cows. Same University of Wyoming McGuire Ranch pasture northeast of Laramie near Sybille Canyon.

A new study overturns the conclusions of an enormously influential paper in 2019 that examined various management actions to slow the decline of endangered mountain caribou herds from BC and Alberta.

 In the American Southwest, native desert bighorn sheep populations found in landscapes with minimal human disturbance.

In the early 1900s, brown trout and rainbow trout were introduced to southern South America for recreational fishing and early aquaculture initiatives.

Fish populations in Canada need to be urgently rebuilt.

A virus affecting wood frog tadpoles throughout the eastern United States is offering scientists a rare opportunity to investigate the role of environmental factors in the spread of infectious disease.

The populations of common animals are just as likely to rise or fall in number in a time of accelerating global change as those of rare species, a study suggests.

The life cycle of a crawfish can be fairly straight forward.

Natural wetlands continue to disappear due to city and human development and are being replaced with manmade swales, ponds and canals. 

With climate change heating the globe, drought more frequently impacts the reproduction and survival of many animal species.