Yale University Actions and Response to COVID-19

News & Updates

Edward P. Bass Distinguished Lecture: The World Without Evolution? with Andrew Hendry

April 23, 2025
Dear YIBS community, Please join us in attending the Edward P. Bass Distinguished Lecture: The World Without Evolution? with Andrew Hendry Date: Wednesday, April 23rd from...
Mixodectes pungens, small mammals that inhabited western North America 62 million years ago, weighed about 3 pounds, dwelled in trees, and largely dined on leaves. Illustration by Andrey Atuchin

A 62-million-year-old skeleton sheds light on an enigmatic mammal

March 11, 2025
For more than 140 years, Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about...
Snail darter

Fish at center of key conservation fight not a distinct species after all

January 3, 2025
In the late-1970s, a small freshwater fish known as the snail darter made history when its newly acquired status as an endangered species helped to temporarily block...