museum specimens

American bumblebee declines in Canada

May 23, 2019

When the once common rusty-patched (Bombus affinis) bumblebee disappeared from Canada by the early 2000s, researchers became worried. What would this mean for less ...

Ravens turn evolution on its head

April 5, 2018

Two lineages of the common raven (Corvus corax) in western North America have been fusing for thousands of years, researchers found, in what they say is one of the ...